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Fine Showroom Specimens Discounted to Half Price!

* Updated October 24th, 2016 *

Tucson2011-283FluoriteMapimiMexico5cm.jpg (292006 bytes)

MIN#Keystone-101

Gemmy cubes of violet-purple Fluorite on Limonite coated Calcite crystal matrix!
These Fluorite cubes are jewels! They literally glow from within without lighting and become
nearly neon quality when given an overhead light. In excellent condition, the largest measures
nearly 2 cm in size and all the Fluorites have a vibrant, satiny luster atop the crystal faces.

From Mapimi, Durango, Mexico.
Measures 3.2 cm by 4.8 cm by 3.2 cm in total size.

Ex. Saums Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Denver2009-104descloizite.jpg (114065 bytes)

MIN#Keystone-102

Impressive cluster of reddish-brown Descloizite crystals on matrix!
An aesthetic cluster with excellent form and very few incomplete crystals.
The crystals themselves are very lustrous and translucent at the tips!

From the Berg Aukas Mine, Grootfontein, Namibia, SW Africa.
Measures 6 cm by 5.4 cm by 4.8 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

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Tucson2011-291PyromorphiteSanAndresMineCordobaSpain.jpg (281996 bytes)

MIN#Keystone-103 SOLD!

Glossy crystals of yellowish-green Pyromorphite snug inside a matrix seam!
The matrix has provided good protection because the crystals are nearly pristine.
Smaller Pyros cover the remainder of the matrix and part of the back side as well.

From the San Andrés Mine, Espiel (Villaviciosa de Córdoba), Córdoba, Andalusia, Spain.
Measures 5.5 cm by 5.5 cm by 3.2 cm in total size.

Ex. Korpi Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Tucson2011-297FluoriteWestPasturesUK77mm.jpg (291672 bytes)

MIN#Keystone-104 SOLD!

Bright golden-yellow cubes of Fluorite with Siderite!
Both sit atop a matrix consising of Limonite coated Galena crystals, the shape of which is still
quite visible through the coating. The Fluorite cubes are pristine with nearly transparent interiors.
From the West Pastures Mine, Stanhope, Weardale, North Pennines, Co. Durham, England.
Measures 7.3 cm by 6.4 cm by 4.6 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Tucson2012-174CopperPhoenixMineKeweenawMichigan113mm.jpg (113066 bytes)

MIN#Keystone-105

Sculptural looking specimen of Native Copper with Copper crystals and Calcite!
The specimen branches out and terminates on the upper left side with dozens
of well defined Copper crystals! Calcite crystals cover the lower right side of the
specimen. An interesting and aesthetic Copper which displays a bi-colored patina!
From the Phoenix Mine in Keweenaw County, Michigan.
Measures 11.3 cm by 6 cm by 4.5 cm in total size.

Ex. Schlichter Mineral Collection
Price $1850

SALE DISCOUNTED TO ONLY $925!

To Order This Specimen, Please Click Here!

 

Tucson2012-209EtchedFluoriteMinervaMine1Illinois85mm.jpg (178668 bytes)

MIN#Keystone-106

Incredible specimen of naturally etched bi-colored Fluorite!
I normally don't acquire etched Fluorite specimens although I know they are very popular
with collectors. This one, however, jumped out at me when I saw it in Tucson and I grabbed
it for the update. This is the most amazing etched specimen I think I've ever seen. It looks
like a sculpture with golden-yellow pillars rising upwards until they reach a purple cap which
displays less etching and even some smooth faces. The entire structure looks like a series
of "mushrooms" and is very 3-dimensional
from all sides. I might also add that it's very
difficult to photograph due to the its depth of structure and is much better in person.
Circa late 1970's - From the Minerva #1 Mine, Hardin County, Illinois.
Measures 5.3 cm by 8.4 cm by 7.3 cm in total size.

Ex. Roy A. Smith Mineral Collection
Price $895

SALE DISCOUNTED TO ONLY $450!

To Order This Specimen, Please Click Here!

 

Denver2008-416galenasphal.jpg (81035 bytes)

MIN#Keystone-107

Impressive crystals of lustrous Galena with Sphalerite sitting atop Dolostone matrix!
The Sphalerite crystals are distinct and well isolated. One can be seen in front just
below the Galenas and the other is perched atop the matrix just behind the Galenas.
From the Cumberland Mine, Smith County, Tennesee.
Measures 7 cm by 6.2 cm by 6 cm in total size.

Price $650

SALE DISCOUNTED TO ONLY $325!

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Tucson2011-274OjuelaMineMapimiDurangoMexicoAdamite.jpg (300196 bytes)

MIN#Keystone-108 SOLD!

Flashy bright crystal clusters of yellow Adamite on Adamite covered Limonite matrix!
I count at least four clusters, all in excellent condition. The only area of contact I see is near the lower
left and this is just a separation zone where matrix was trimmed away. A glassy, reflective specimen!

From the Ojuela Mine, Mapimi, Durango, Mexico.
Measures 4.4 cm by 6.3 cm by 3.2 cm in total size.

Price $485

SALE DISCOUNTED TO ONLY $250!

To Order This Specimen, Please Click Here!

 

Tucson2010-332SilverSanMartinMineMexico.jpg (71699 bytes)

MIN#Keystone-109

Thick and impressive curved wire of Native Silver accented by micro Acanthite!
A superb example of an off-matrix Silver wire! The striations are very pronounced
and the luster is excellent. A lovely antique patina completes the entire package.
From the San Martin Mine, San Martin, Zacatecas, Mexico.
Measures 3.6 cm by 2.1 cm by 1.2 cm in total size.

Price $895

SALE DISCOUNTED TO ONLY $450!

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Tucson2010-257SphaleriteRhodochrositeManuelitaMinePeru.jpg (435856 bytes)

MIN#Keystone-110 SOLD!

Colorful mix of rootbeer-colored Sphalerite crystals on pink Rhodochrosite!
The color of the Sphalerite crystals is an intense amber-brown and is quite gemmy in some
locations. The pink Rhodochrosite covers almost the entire matrix with a beautiful contrast.

From the Manuelita Mine, Morococha District, Yauli Province, Junin Department, Peru.
Measures 7.2 cm by 5.1 cm by 4.2 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Tucson2011-139IlinoisBi-coloredFluorite2.jpg (221998 bytes)

MIN#Keystone-111

Amazing specimen featuring dark purple cubes of Fluorite alongside etched yellow Fluorite crystals!
I never cease to be amazed by the combinations Fluorite can create for itself. This interesting specimen
began as a yellow Fluorite cluster. Later it was etched by natural solution and later overgrown on the
left side by purple Fluorite cubes. The basic structure of the original yellow Fluorite is still visible
despite the etching and together both colors create a wonderful specimen which has a lot to say.

From the Victory Mine, Cave-in-Rock, Hardin County, Illinois.
Measures 8 cm by 11.2 cm by 7 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Tucson2011-58FluoriteStakNalaPakistan68mm.jpg (236681 bytes)

MIN#Keystone-112

Fine green Fluorite octahedrons atop Quartz and Albite matrix!
The crystals are complete and undamaged with a better than average color.
The surfaces are slightly textured and probably etched to a minor degree.
A fine miniature that is a good representative of this scarce Fluorite locality.

From Stak Nala, Gilgit District, Pakistan.
Measures 5.5 cm by 6.3 cm in size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Tucson2010-313PyriteQuartzKrushevDolMineBulgaria.jpg (122968 bytes)

MIN#Keystone-113

Super lustrous crystal clusters of Pyrite on Quartz matrix!
The largest cluster measures 3 cm in size and most are 2 cm to 3 cm. The crystals
themselves are very flashy golden-bronze with sharp faces and layers of growth.

From the Krushev dol Mine, Madan Ore Field, Rhodope Mtns., Smolyan Oblast, Bulgaria.
Measures 11.2 cm by 7 cm by 4.5 cm in total size.

Price $585

SALE DISCOUNTED TO ONLY $300!

To Order This Specimen, Please Click Here!

 

Tucson2010-336CopperBisbeeArizona.jpg (225934 bytes)

MIN#Keystone-114 SOLD!

CLASSIC Copper specimen! Fine pocket of bluish-tinted Native Copper crystals!
I love the way these Copper crystals sit inside the matrix recess. The appearance is
very organic and original and the bluish coating adds a nice touch to the specimen.
From the 5th level of the Southwest Mine, Bisbee, Cochise County, Arizona.
Measures 12.4 cm by 7.5 cm by 5.6 cm in total size.

Ex. Evan Jones Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Tucson2013-141AcanthiteAmethystCzechRepublic.jpg (206530 bytes)

MIN#Keystone-115

Lovely Amethystine Quartz with Pyrargyrite, Prousite and Acanthite crystals on matrix!
This is a classic Silver specimen with a beautiful display. There's a good bit of red still
showing through in the Pyrargyrite and Prousite crystals. They're in great shape as well.
From St. Joachimsthal, Erzegebirge, Czech Republic.
Measures 6 cm by 5 cm by 3 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Tucson2013-149FluoriteCalciteDalnegorskRussia.jpg (196846 bytes)

MIN#Keystone-116

Large colorless Fluorite cube set atop Pyrite accenting Calcite crystals!
The Fluorite is complete on all sides and exhibit a satiny luster over a translucent
interior. It measures 5.3 cm by 4.3 cm in size and has a wonderful internal patterning
along cleavage zones. This is a natural feature and it makes for a great visual display.
From the 2nd Sovetskii Mine, Dal'negorsk, Primorskiy Kray, Far-Eastern Region, Russia.
Measures 9.5 cm by 9.5 cm by 5 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Tucson2013-142DanburiteCitrineQuartzCharcasMexico87mm.jpg (167389 bytes)

MIN#Keystone-117

Natural Quartz var. Citrine crystals on glassy white Danburite!
Fine specimen featuring a large terminated Danburite crystal with natural
Citrine Quartz crystals attached to the front and bottom. This is a fairly unique
specimen and I can't recall seeing another like it. The Danburite is complete and
beautifully glassy, measuring 8.5 cm by 3.2 cm in size. It is accompanied by a dozen
of so other Danburites of varying size. I count at least six orange Citrine crystals,
all of which are quite gemmy. The largest of these measures to .8 cm in length.
From Charcas, Mun. de Charcas, San Luis Potosí, Mexico.
Measures 8.5 cm by 6.4 cm by 5.3 cm in total size.

Price $895

SALE DISCOUNTED TO ONLY $450!

To Order This Specimen, Please Click Here!

 

Denver2013-97FluoriteQuartzHunanProvinceChina.jpg (189468 bytes)

MIN#Keystone-118

Attractive specimen featuring large cubes of bi-colored Fluorite on Quartz matrix!
These cubes are mostly purple with green undertones and interior frosting near some of
the corners. The
surfaces are satiny lustrous and the cubes are translucent to transparent.
They measures in size to 4 cm and sit atop a drusy covered Quartz matrix. In very good
condition with no serious contacts and an intense sparkle. This is older material, circa 1998.
From the Xianghualing Mine, Chenzhou Prefecture, Hunan Province, China.
Measures 6.5 cm by 13.5 cm by 6.4 cm in total size.

Price $895

SALE DISCOUNTED TO ONLY $450!

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Denver2013-138EpidoteQuartzJinkouheLeshanPrefectureSichuanProvinceChina.jpg (259759 bytes)

MIN#Keystone-119

Stunning combination featuring green Epidote clusters with glassy Quartz crystals!
Some of these Epidote clusters take on the appearance of "Ram's Horns" and curl backwards
upon themselves. The tips are dark and glossy and give off a flashy sparkle while the interiors
are more matted and shift to a lighter green color. The Quartz points are transparent and sharp.
From Jinkouhe, Leshan Prefecture, Sichuan Province of China.
Measures 6.8 cm by 8.2 cm by 5.8 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Denver2010-107calcite.jpg (252363 bytes)

MIN#Keystone-120

Gemmy crystals of Golden Calciute atop matrix!
A good looking specimen with only a few very minor contacts. The crystals are glassy and gem
and completely drape the top of the matrix. This specimen could be displayed from with side.

Circa 1980 - From the Stoneco Auglaize Quarry, Paulding County, Ohio.
Measures 5.2 cm by 6.9 cm by 4 cm in total size.
Ex. Rick Russell Mineral Collection
Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Denver2010-62mimetite.jpg (182539 bytes)

MIN#Keystone-121

Pretty specimen featuring globular Mimetite over Mimetite crystals!
The color can best be described as a satiny yellow with a slight touch of green.
The rounded Mimetite at top sits atop a bottom matrix consisting of prismatic crystals.

From the Ojuela Mine, Mapimi, Durango, Mexico.
Measures 5.7 cm by 5.4 cm by 3 cm in total size.

Price $485

SALE DISCOUNTED TO ONLY $250!

To Order This Specimen, Please Click Here!

 

Tucson2012-175CopperDalaneMineNorway5cm.jpg (224803 bytes)

MIN#Keystone-122 SOLD!

Scarce old specimen of Native Copper in matrix from Norway!
I don't come across Native Coppers from Norway very often and I was struck by the eye appeal
of this specimen. The Native Copper sheet stretches some 3.7 cm upwards from the matrix and is
covered with rounded striations which reflect matrix influence. The surfaces are satiny lustrous.

From the Dalane Copper and Silver Mines, Dalane, Kviteseid, Telemark, Norway.
Measures 5 cm by 4.3 cm by 1.6 cm in total size.

Ex. T. Bye Mineral Collection
Comes with an old handwritten label
Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Denver2010-202malachitepsazurite.jpg (197226 bytes)

MIN#Keystone-123

Fine specimen of Malachite ps after Azurite crystals!
A classic Tsumeb specimen, these pseudomorphed Azurite crystals are sharp with a distinctive form.
The terminations criss-cross somewhat and both are complete and uncontacted. Very nice miniature!

From the Tsumeb Mine, Tsumeb, Namibia, SW Africa.
Measures 5.5 cm by 3.8 cm in size.

Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2010-207AcanthiteChalcopyritePSPolyBasiteGuanajuatoMexico46mm.jpg (270646 bytes)

MIN#Keystone-124 SOLD!

Unusual and quite flashy combo featuring Acanthite crystals on Chalcopyrite ps. after Polybasite!
The Acanthite crystals are very sharp and lustrous and show well against the Golden Chalcopyrite.
There's also a slight iridescence to them. The Chalcopyrite has completely pseudomorphed the
Polybasite and the end result is a super lustrous, golden series of glittering blades, both large and small.
From Guanajuato, Guanajuato, Durango, Mexico.
Measures 3.8 cm by 4.3 cm by 4 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Denver2010-216FluoriteCalciteDalnegorskRussia55mm.jpg (194643 bytes)

MIN#Keystone-125

Very fine specimen featuring crystal-clear Fluorites with Calcite on drusy covered Quartz!
The Fluorites are literally pristine with no damage to speak of. They have glassy faces and nearly
transparent interiors. Only some internal crazing in the larger Fluorite keep it from being totally
clear but the smaller Fluorite is read-through transparent. Fine rhombs of Calcite accent the base
beneath the Fluorites and both minerals sit atop a cluster of sparkling Quartz points and drusy.

From Dal'negorsk, Primorskiy Kray, Russia.
Measures 5.5 cm by 4.7 cm by 3.5 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Tucson2010-68FluoriteSphaleriteElmwoodMineTennessee.jpg (147300 bytes)

MIN#Keystone-126

Sweet specimen featuring a large, shiny Sphalerite crystal set among Fluorite cubes on Dolostone!
In excellent conditional overall, the Sphalerite it aesthetically surrounded by the zoned Fluorites!
From the Elmwood Mine, Smith County, Tennessee.
Measures 7.5 cm by 7.4 cm by 5.6 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Denver2008-430copper.jpg (74083 bytes)

MIN#Keystone-127 SOLD!

Sharp crystals of Native Copper rising up from a Quartz covered matrix!
It all begins with a sharp 2.1 cm crystal which gives rise to a "tree-like" growth of smaller crystals!
From Keweenaw County, Upper Peninsula, Michigan.
Measures 6.3 cm by 6 cm by 5.2 cm in total size.

Ex. Russell MacFall Collection
Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Tucson2010-261FluoritePyriteHuanzalaMinePeru.jpg (446677 bytes)

MIN#Keystone-128

Beautiful light pink crystals of Fluorite in cluster with Pyrite and Galena!
These rounded and modified Fluorite crystals are incredibly gem and flashy!
The Pyrites at top are covered with tiny Galena crystals.
From the Huanzala Mine, Huanuco Department, Peru.
Measures 4.2 cm by 3.5 cm by 3.8 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Tucson2010-272GalenaSiegeniteMissouri.jpg (545698 bytes)

MIN#Keystone-129

VERY RARE combination of Siegenite with iridescent Galena!
The cubic Galenas and rare Siegenite sit along side a larger octahedral habit Galena crystal.
I love the bluish-purple iridescent coating on the smaller Galenas. It really sets off the piece!
From the Bonneterre Formation, Viburnum Trend, Missouri.
Circa 1996 - Measures 3.7 by 3 cm by 2.6 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Tucson2010-62BerylBiColorMicroclineBahaPakistan.jpg (136847 bytes)

MIN#Keystone-130 SOLD!

Pretty specimen featuring a bi-colored Aqua-Morganite on Microcline with Albite!
This gemmy 1.6 cm crystal shows much better pink and blue coloration than what I normally
see in bi-color Beryls from this locale. It's perfectly terminated at top and rehealed on the
bottom where it fractured in the pocket millions of years ago. The Microcline has a sharp
termination with shiny crystal faces. Jagged Albite crystals add a nice contrasting texture.

From Baha, S. W. Buspar Peak, Baltistan, Northern Areas of Pakistan.
Measures 5 cm by 5.6 cm by 4.2 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Tucson2010-130AllargentumSchachneriteSilverMorocco.jpg (156371 bytes)

MIN#Keystone-131 SOLD!

Interesting mix of Allargentum with Dyscrasite, Schachnerite, and Native Silver!
I cherry picked the group that appeared in Tucson for the most aesthetic specimens from
this new find and this cute miniature was among the ones chosen. The highly lustrous
crystals spray out towards the left from the center cluster and the entire grouping sits atop a
matrix of shiny white Calcite. The numerous crystals are somewhat matted but still quite distinct.

From the Bouismas Mine, Bou Azzer District, Ouarzazate Province of Morocco.
Measures 4.5 cm by 4.5 cm by 3.8 cm in size.

Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2010-149ChinaPyromorphite.jpg (182086 bytes)

MIN#Keystone-132

Fine cluster of Pyromorphite crystals off matrix!
I say off matrix because the host matrix is pretty much gone, leaving a concave cast beneath
the Pyromorphite. This is a smaller version of the larger plate above and is in excellent condition as
well. The crystals are lustrous and reflective with full terminations and just a tint of olive in the green.

From the
Daoping Mine, Gongcheng City, Guangxi Zhuang Autonomous Region, China.
Measures 2.9 cm by 3.9 cm by 3 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Denver2010-214AmethystSwakopmundNamibia82mm.jpg (190480 bytes)

MIN#Keystone-133

Beautiful specimen of Amethyst-tipped Quartz crystals on Quartz cast matrix!
A specimen that is very pleasing to the eye! The Amethyst color is intense and this creates
a radical break where the Quartz crystals begin to grow scepters. The two upright crystals on
the top right display this feature very well. All the terminations are complete with only a couple
of bumps on the backside of two crystals. This definately doesn't detract from the specimen.

From the Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia
Measures 7 cm by 9 cm by 4.1 cm in total size.
Ex. Charles Key Mineral Collection
Price $2500

SALE DISCOUNTED TO ONLY $1250!

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Tucson2008-98poldvar.jpg (64453 bytes)

MIN#Keystone-134

Gorgeous hot peach-colored Olmiite crystal ball on gem Calcite!
This was originally labeled as Poldervaartite but very recent analysis has shown that these are
indeed Olmiite - a Mn dominant Poldervaartite. These crystal balls have excellent luster and color.
From the N'Chwaning II Mine, Kuruman, Northern Cape Province, South Africa.
Measures 4.4 cm by 3.2 cm in size.

Price $550

SALE DISCOUNTED TO ONLY $275!

To Order This Specimen, Please Click Here!

 

Denver2009-173NYsphalerite.jpg (60614 bytes)

MIN#Keystone-135

Classic specimen featuring gemmy Sphalerite crystals on Calcite matrix!
The crystals are a gorgeous amber-brown and exhibit incredible glassy luster!
The largest Sphalerite measures 1.2 cm in size.

From the Walworth Quarry, Wayne County, New York.
Measures 3.3 cm by 2.3 cm by 2.2 cm in total size.

Price $185

SALE DISCOUNTED TO ONLY $95!

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Denver2010-136AdamiteCalciteOjuelaMineMexico8cm.jpg (261205 bytes)

MIN#Keystone-136

Glassy, isolated crystals of bright yellow Adamite with colorless Calcites on Limonite matrix!
Very attractive specimen with a good amount of flash and color. The crystals are complete and in
excellent shape. The glassy Adamites stack together and really pop out against the orange Limonite!

From the Ojuela Mine, Mapimi, Durango, Mexico.
Measures 6.8 cm by 7.4 cm by 4.5 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Denver2010-49SphaleriteGalenaChalcopyriteAmethystCreedeColorado.jpg (162274 bytes)

MIN#Keystone-137

Very fine specimen of Sphalerite crystals with Galena and Chalcopyrite on Amethyst!
The Sphalerites are very impressive with the largest measuring 3.5 cm in size! They glow
rich golden-brown when backlit and could be cut into some gorgeous gemstones. The lustrous
Galenas and golden Chalcopyrites sit with the Sphalerites atop a light purple layer of Amethyst.

From the P-vein 2 south, 5 level, Commodore Mine, Creede, Mineral County, Colorado.
Measures 9 cm by 4.6 cm by 4.2 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Denver2010-221BariteShirleyBasinWyoming97mm.jpg (113818 bytes)

MIN#Keystone-138

Glassy cluster of greenish Barite crystals with a small amount of matrix!
In excellent condition overall with very little in the way of chipped corners which are common
to Barite specimens. The crystals are translucent with a light greenish hue and there appears to be
small lustrous Hematite crystals nestled between some of the blades. Uncommon locality for Barite!

From the Shirley Basin, Carbon County, Wyoming.
Measures 10 cm by 4.6 cm by 4.4 cm in total size.

Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2011-115MalachiteLiveOakPitArizona95mm.jpg (191780 bytes)

MIN#Keystone-139

Incredible specimen featuring large stacked crystals of Malachite ps after Azurite!
This is a very impressive pseudomorph from one of the classic Copper mining localities of Arizona!
I love the aesthetically stacked crystals along the upper left but the entire specimen is stunning with
its large, distrinct crystal blades. In excellent condition overall with very few contacts. This specimen
dates back to the early mining period of the Miami district and is circa 1910-1920. Very difficult to find.

From the Live Oak pit, Inspiration Mine, Miami-Inspiration deposit, Globe-Miami Dist., Gila Co., Arizona.
Measures 9.5 cm by 7.2 cm by 5.8 cm in total size.

Ex. Gerry McLoughlin Mineral Collection
Price $3500

SALE DISCOUNTED TO ONLY $1750!

To Order This Specimen, Please Click Here!

 

Denver2010-123DolomiteCampBirbMineOurayColorado76mm.jpg (291839 bytes)

MIN#Keystone-140

Fine locality piece featuring cream-colored Dolomite crystals on Quartz drusy matrix!
This specimen is from the Camp Bird Mine and is the first Dolomite I've seen from there in quite
some time. I don't know how scarce they are but I do know that specimens from the Camp Bird
are not common at the shows. This one presents a fine gathering of small Dolomite clusters
draped over a sparkling Quartz matrix. The brown colored crystals may be small Siderites.

From the Camp Bird Mine, Ouray, Colorado.
Measures 6.2 cm by 7.6 cm by 4.5 cm in total size.

Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2011-10CelestineScofieldMichigan81mm.jpg (168782 bytes)

MIN#Keystone-141

Impressive, large crystal of Celestine on Celestine covered matrix with Calcite!
This perfectly terminated crystal measures 5.5 cm in length and 3 cm in width! It juts upwards
from the blue matrix, creating a specimen that is both aesthetic and visually stunning. I might
point out that it could be displayed from either side and there are no real contacts to speak of.

The side shown has a small bit of attached matrix but the other side is perfectly clean.
From near Scofield, Monroe County, Michigan.
Measures 8 cm by 8.2 cm by 5.9 cm in total size.

Ex. Al Ordway Mineral Collection
Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Denver2012-19SilverRingnesgangenNorway35mm.jpg (255377 bytes)

MIN#Keystone-142

Fine dendrites of Native Silver with Acanthite and iridescent Sphalerite on matrix!
A cute combination piece which displays a good amount of fine Silver crystals along with a scattering of
iridescent Sphalerites. There may also be some Acanthites in the mix (note the crystal on the upper left).

From the Ringnesgangen Mine, Vinoren Silver Mine Field, Kongsberg, Svene, Flesberg, Buskerud, Norway.
Measures 3.7 cm by 3.2 cm by 1.7 cm in total size.

Ex. T. Bye Mineral Collection
Price $485

SALE DISCOUNTED TO ONLY $250!

To Order This Specimen, Please Click Here!

 

Denver2011-17PTSmithsoniteSardinia.jpg (149900 bytes)

MIN#Keystone-143

CLASSIC SMITHSONITE!!
This old timer also has Azurite crystals which are located on the far right of the matrix!
Malachite accents as well. The sea-green surfaces are in excellent condition considering the
age of the specimen and the luster is a mild frosty one. Italian Smithsonites are a rare find indeed.
Antique collection label lists the specimen as being from Masaia, Sardinia.
Circa 1900 - From the Masua Mine, Masua, Iglesias, Carbonia-Iglesias Province, Sardinia, Italy.
Measures 6.8 cm by 6.4 cm by 3 cm in total size.

Ex. Col. J. H. Pratt, Paul Tucker Mineral Collections
Price $785

SALE DISCOUNTED TO ONLY $385!

To Order This Specimen, Please Click Here!

 

Denver2011-21SilverKirklandOntario5cm.jpg (138464 bytes)

MIN#Keystone-144 SOLD!

Sweet miniature featuring Leaf Native Silver in and atop matrix!
A very aesthetic specimen which displays three distinct growths of leaf Silver with
the largest of which rising 2.4 cm above the dark matrix. Delicate looking but sturdy.

A rare specimen being that Silver is not listed as a major mineral in the Kirkland area.
From the Kirkland Lake area, Gauthier Township, Timiskaming District, Ontario, Canada.
Measures 5 cm by 2.4 cm by 2.2 cm in total size.

Ex. Schlichter Mineral Collection
Price $485

SALE DISCOUNTED TO ONLY $285!

To Order This Specimen, Please Click Here!

 

Denver2009-499GalenaDolomitePicherOklahoma.jpg (174563 bytes)

MIN#Keystone-145

Sharp looking crystals of Galena (octahedral) atop Sphalerite!
Both the Galenas and Sphalerite sit atop a Dolomite crystal covered Chert matrix.
From the Tri-State Mining District, Picher, Oklahoma.
Measures 4.7 cm by 7.8 cm by 4.5 cm in total size.

Price $895

SALE DISCOUNTED TO ONLY $450!

To Order This Specimen, Please Click Here!

 

Denver2012-54CadmiumSmithsoniteChoixMexico.jpg (136618 bytes)

MIN#Keystone-146

Layered specimen featuring orange Cadmium Smithsonite over silver Smithsonite!
Beneath the silver colored Smithsonite is a layer of sea-green Smithsonite, visible
at the bottom trimming edge. The surfaces are botryoidal and extremely lustrous!
Nearly pristine with no major contacts. The Cadmium orange allows the silver to peak
through in a few scattered spots, adding a wonderful contrast to the brilliant surfaces.

From Choix, Mun. de Choix, Sinaloa, Mexico.
Measures 10 cm by 6.8 cm by 5 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Tucson2010-39TwinCalciteChina.jpg (139108 bytes)

MIN#Keystone-147

Lovely, phantomed Calcite twin on smaller phantomed Calcites!
The individual Calcite crystals are all terminated with glassy surfaces and darker brown
phantoms. The specimen is nearly flawless with only a minor chip on the right side Calcite.

From Xiang Fang Lin Mine, Chenzhou, Hunan Province of China.
Measures 5.2 cm by 3.8 cm in size.

Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2013-217GalenaCreedeDistrictColorado8cm.jpg (85077 bytes)

MIN#Keystone-148 SOLD!

VERY RARE! Galena crystals in stalactite form from Creede, Colorado!
This is a true rarity from the Creede District and the first I've ever offered on the
website. It is a stalactite consisting entirely of small Galena cubes which climb one
another all the way to the top of the formation. The cubes are sharp and lustrous and
there is some indication at the top that the stalactite may be hollow or partially hollow.

From the Creede Mining District, Creede, Mineral County, Colorado.
Measures 8.3 cm by 2.8 cm by m in total size.

Ex. David Glenn Mineral Collection
Price $1750

SALE DISCOUNTED TO ONLY $875!

To Order This Specimen, Please Click Here!

 

Tucson2010-333FluoritePyriteHuanzalaPeru.jpg (149848 bytes)

MIN#Keystone-149

Bi-color specimen of green and pink Fluorite crystals with Pyrite!
Beautiful cluster displaying blushes of both colors throughout. The Fluorite faces are
glassy and the crystals are well defined octahedral. The Pyrite cubes accent both sides.
From Huanzala,
Dos de Mayo Province, Huanuco Department, Peru
Measures 3.7 cm by 5 cm in size.
Ex. Martin Zinn Collection
Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2009-43chinafluorqtzwolframite.jpg (63825 bytes)

MIN#Keystone-150

Terminated blade of Wolframite on Quartz points with Fluorite, Dolomite, and Muscovite!
The Wolframite blade has two irregular terminations - actually natural breaks that
rehealed in the mine. Both are partially covered with Muscovite and Dolomite crystals.

From the Yaogangxian Mine, Hunan Province of China.
Measures 6.7 cm by 4.2 cm by 5.2 cm in size.

Price $485

SALE DISCOUNTED TO ONLY $250!

To Order This Specimen, Please Click Here!

 

Denver2009-172vanadinite.jpg (135521 bytes)

MIN#Keystone-151

Flashy specimen featuring glassy reddish-orange Vanadinite crystals on spotted matrix!
Pretty much every crystal is in pristine condition and all are upright standing which always
creates the best overall appearance I think. The spots are nice and may be
Psilomelane.
From Mibladen, Meknes-Tafilalet Region, Morocco.
Measures 10 cm by 10 cm by 4.6 cm in size.

Price $985

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2013-239MalachiteCupriteMapimiMexico9cm.jpg (160202 bytes)

MIN#Keystone-152 SOLD!

Fine botryoidal Malachite over Cuprite from Mexico!
This is an old classic that actually features two distinct forms of Malachite atop a thick seam
of reddish-brown Cuprite. The center Malachite is a druse form with dark green coloration and
a dazzling, sparkling botryoidal surface. This Malachite gives way at the edges to a lighter color
zone that ranges from satiny to powdery in appearance. The specimen is loaded with eye appeal
and very aesthetic. I would rate this as one of the finest I've seen in quite some time from Mapimi.

From Mapimi, Durango, Mexico.
Measures 9.6 cm by 5.3 cm by 5 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Denver2013-235FluoriteElmwoodMine8cm.jpg (263071 bytes)

MIN#Keystone-153

Fine specimen featuring raspberry-purple Fluorite cubes on Sphalerite!
From the Elmwood Mine, this specimen displays a gemmy raspberry coloration with
slighter darker phantoms just beneath the surface of each cube. I only see one contact
of note and it is hidden away on the backside of the specimen. The crystals on the far
left edge are not damaged but are instead etched, displaying a somewhat triangular form
with multiple stepped faces. This etched formation is often encountered in Elmwood
Fluorites and it adds
a nice contrast to the more common cubic cystals. The Sphalerite
matrix is highly lustrous and clean with glassy smooth crystal surfaces and no contacts.
From the Elmwood Mine, Smith County, Tennessee.
Measures 6.8 cm by 7.2 cm by 4.7 cm in total size.

Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2012-15PyriteQuartzButteMontana7cm.jpg (327988 bytes)

MIN#Keystone-154

Large, impressive crystal of Pyrite set among Quartz  on matrix!
This is a Pyrite octahedron and it measures nearly 4 cm in size. It's one of the best Pyrites I've seen
in years from Butte, Montana and it's in very good condition as well. The above photo shows what
appears to be cracks in the main Pyrite but these are very tiny stress lines that have been magnified
by the camera. In person, they are practically invisible and get lost among the intense luster on the
crystal faces. The main Pyrite is very study and I only detect a single small contact on the backside
.
From Butte, Silver Bow County, Montana.
Measures 4.5 cm by 6.8 cm by 5.4 cm in total size.

Ex. George White Mineral Collection
Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2010-6BerylMuscoviteItatiaiaMineBrazil.jpg (159462 bytes)

MIN#Keystone-155

Glassy Beryl var. Heliodor crystal nestled between Muscovite and Albite blades!
This 5.5 crystal is incredibly sharp on the front side for a Brazilian Beryl and completely
rehealed on the backside. The color is slightly greenish-yellow and the front faces display
the typical Beryl modifications. This specimen could actually be display front on as it
is in the above photograph or turned onto it's side. Either position looks great!
From the Itatiaia Mine, Conselheiro Pena, Minas Gerais, Brazil.
Measures 5.5 cm by 7 cm by 5 cm in total size.

Price $1450

SALE DISCOUNTED TO ONLY $725!

To Order This Specimen, Please Click Here!

 

Denver2011-104HessoniteDiopsideTestaCiarvaItaly55mm.jpg (254851 bytes)

MIN#Keystone-156

Fine combo of Hessonite Garnet with glassy Diopside crystals from an old classic locality!
A flashy gem miniature with loads of color and sparkle and unusually large Diopside crystals!
In excellent condition overall, with only some natural matrix influenced irregular terminations
on the Diopside. This is common and not considered to be damage. Both the Hessonite and
Diopside are incredibly gemmy and glassy.
The color could best be described as reddish-orange.
From Testa Ciarva, Balme, Ala Valley, Lanzo Valley, Torino Province, Piedmont, Italy.
Measures 5.2 cm by 4.7 cm by 3.8 cm in total size.

Ex. J. Hoppner Mineral Collection
Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2011-98SeleniteGibraltarMineMexico14cm.jpg (135489 bytes)

MIN#Keystone-157

Cabinet sized specimen of Fishtail Selenite crystals!
An awesome display specimen, I rarely see these twinned Selenite crystals anymore and specimens of
this condition without damage and or major scuffing are extremely hard to find!
The largest fishtail twin
at the top measures 9 cm in height and 8 cm in width. It's surrounded by a smaller twin on the front and
untwinned Selenite crystals on the side and back. All sit aesthetically atop a hard white stone matrix.
From the Gibraltar Mine, Chihuahua, Mexico.
Measures 13 cm by 10.8 cm by 14.7 cm in total size.

Ex. David Stoudt Mineral Collection
Price $1850

SALE DISCOUNTED TO ONLY $925!

To Order This Specimen, Please Click Here!

 

Denver2010-242SweetHomeRhodoMalachite.jpg (141687 bytes)

MIN#Keystone-158

Colorful specimen of Rhodochrosite with Quartz, Tetrahedrite, and Malachite!
As far as I know, only one pocket with Malachite was found at the Sweet Home Mine.
Most specimens from there had poor quality Rhodo in pretty rough shape. This was the
only specimen I found that had several complete and gemmy rhombs with the Malachite!

From the Malachite Pocket, 3rd Tetrahedrite Raise, Sweet Home Mine, Alma, Colorado.
Measures 8.5 cm by 5.5 cm by 3.8 cm in total size.

Price $950

SALE DISCOUNTED TO ONLY $475!

To Order This Specimen, Please Click Here!

 

Tucson2010-211NatroliteAnalcimePricePeakQuarryOregon.jpg (182996 bytes)

MIN#Keystone-159 SOLD!

Wonderful specimen featuring a crystal needle ball of Natrolite atop gemmy Analcime!
The 2.5 cm Natrolite ball at top is pristine. Gorgeous specimen with more than its fair share of flash!
From the Price Peak Quarry, near King's Valley, Benton County, Oregon.
Measures 7.7 cm by 10.2 cm by 4 cm in total size.

Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2010-118BoulderOpal53mm.jpg (248622 bytes)

MIN#Keystone-160

Dazzling specimen of Gem Boulder Opal in brown ironstone matrix!
I see reds, greens, yellows, oranges, and blues in this fine Opal seam which runs through both
the whitish matrix and the layered ironstone. The color flashes are smaller and more scattered
giving the specimen a "twinkling star" appearance similar to that of Andamooka Opals.

From Quilpie, Quilpie Shire, Queensland, Australia
Measures 5.4 cm by 5.2 cm by 3.2 cm in size - Weighs more than my scale's 125 gram limit.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Denver2009-182epidoteapatite.jpg (51386 bytes)

MIN#Keystone-161

Sweet little combo of gemmy green Epidote crystals with pink Apatite!
A stunning small miniature with fully terminated crystals and great presentation!

From Dassu, Shigar Valley, Skardu District, Baltistan, Northern Areas of Pakistan.
Measures 3.7 cm by 3.2 cm in size.

Price $485

SALE DISCOUNTED TO ONLY $250!

To Order This Specimen, Please Click Here!

 

Tucson2012-214ChalcedonySideriteHuttenbergAustria8cm.jpg (189432 bytes)

MIN#Keystone-162

Bi-colored Chalcedony over Siderite crystals!
A scarce specimen of pearly Chalcedony coating large Siderite crystals. The colors
present are golden-tan and silver-grey
and there are no visible contacts to speak of.
From Hüttenberg, Carinthia, Austria.
Measures 6.5 cm by 7.6 cm by 3.7 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Denver2012-75ChalcoypyriteQuartzBandoraMineColorado35mm.jpg (185985 bytes)

MIN#Keystone-163

Large lustrous Chalcopyrite crystal on Quartz needles!
This impressive golden Chalcopyrite crystal measures 2.6 cm in length! The matrix
is a cluster of fine Quartz needles with no visible damage. I rarely see classic Colorado
mineral specimens from the Silverton area. this specimen represents a rare opportunity.
The Bandora Mine operated intermittently between 1884 and the early 1950's.
From the Bandora Mine, South Mineral Creek, San Juan Co., Colorado.
Measures 3.7 cm by 2.8 cm by 2.8 cm in total size
Ex. Grace Dyck Mineral Collection
Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Tucson2012-222GoethitePSSeleniteChihuahuaMexico85mm.jpg (180124 bytes)

MIN#Keystone-164

Unique PSEUDOMORPH specimen featuring Goethite ps after Selenite crystals!
Visually this specimen is quite impressive. The brown Goethite pseudomorphs the Selenite crystals
and accurately displays the crystal habit despite the difference in appearance. The largest of the
pseudomorphs measures nearly 8 cm in length! The interiors are hollow and cast-like in structure.
From Santa Eulalia, Chihuahua, Mexico.
Measures 9.7 cm by 6.4 cm by 4.6 cm in total size.

Ex. Hansen Mineral Collection
Price $2450

SALE DISCOUNTED TO ONLY $1225!

To Order This Specimen, Please Click Here!

 

Denver2011-62GypsumSeleniteSantaEulaliaMexico17cm.jpg (184344 bytes)

MIN#Keystone-165

Brilliant crystal of transparent Selenite set among Gypsum matrix!
Perfectly terminated and measuring nearly 10 cm in length, this Selenite has a lot of pizzazz
for such a common mineral. The surfaces are superbly striated, giving the crystal an amazing
sheen or luster. The termination is fine with only a small bit of irregularity on the right side. Other
smaller Selenites pop out here and there from the yellowish-tan Gypsum matrix. Very fluorescent!

From Santa Eulalia, Chihuahua, Mexico.
Measures 17 cm by 15.7 cm by 11.8 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Denver2011-130ChoixSinaloaMexico.jpg (206976 bytes)

MIN#Keystone-166

Extremely lustrous specimen of sea-green colored Smithsonite!
A beautifully formed and 3-dimensional specimen, this piece actually has two colors of
green which blend together to create a sparkling sea-green color. The botryoidal surfaces
scream luster as they convex and concave atop the sculptural matrix formations beneath.
From the El Refugio Mine, Choix, Sinaloa, Mexico.
Measures 9.5 cm by 10 cm by 5.4 cm in size.

Ex. Kerry Cooper Mineral Collection
Price $785

SALE DISCOUNTED TO ONLY $385!

To Order This Specimen, Please Click Here!

 

Denver2012-4SchorlGuadalupanaMineMexico85mm.jpg (223594 bytes)
Denver2012-4b.jpg (232417 bytes)

MIN#Keystone-167

Velvety clusters of Schorl Tourmaline with Quartz on Albite matrix!
These lovely specimens have become very diffcult to track down in the current market. They came
out about a decade ago and now I'm lucky if I see one or two at a mineral show.
This specimen
displays a superb crystal spray of nearly 4 cm in size, complete with all the tips and the luster that
comes with. Small Quartz crystals are scattered about atop the Albite matrix, accenting the Tourmalines.
From the Guadalupana Mine, Sierra del Chivato, Santa Cruz, Mun. de Santa Cruz, Sonora, Mexico.
Measures 5.2 cm by 8.5 cm by 7.5 cm in total size.

Price $785

SALE DISCOUNTED TO ONLY $400!

To Order This Specimen, Please Click Here!

 

Denver2009-155creedite.jpg (79098 bytes)

MIN#Keystone-168

Gemmy crystals of lavender Creedite on matrix!
These crystals are large and isolated with a color that is more lavender than purple!
I personally prefer this look and think it's more beautiful than the darker purple
specimens. The crystals are very transparent and glassy, ranging from 1 to 1.5 cm.
Interestingly, there are a couple of orange Creedite crystals at the very top!

From Santa Eulalia, Chihuahua, Mexico.
Measures 5.4 cm by 5.3 cm in size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Tucson2013-226FluoriteMinervaMineHardinCoIL.jpg (145622 bytes)

MIN#Keystone-169

Lavender-blue Fluorite in cluster with a darker purple core in the largest cubes!
The Fluorite surfaces are glassy and reflective and the interior are transparent. The color
could best be described as blue with a touch of lavender in the mix. There are some minor
contacts along the left edge and a corner cleave but overall the specimen is in good shape.

From the Minerva #1 Mine, Hardin County, Illinois.
Measures 6 cm by 9.7 cm by 3.3 cm in total size.

Price $895

SALE DISCOUNTED TO ONLY $450!

To Order This Specimen, Please Click Here!

 

Tucson2013-292SmithsoniteChoixMexico85mm.jpg (193383 bytes)

MIN#Keystone-170

Bi-colored specimen of orange and silver-grey colored Smithsonite!
This specimen features an interesting mix of colors - Cadmium Orange and a silky
silverish-grey. I don't recall seeing this combination before and it's pretty nice. The
surfaces are lustrous with a nice rolling sheen. These is a single natural break near the
top center where the Smithsonite displays its radial form. All in all, an attractive specimen
that would be a great addition to a Smithsonite color set or a Mexican mineral collection.
From the El Refugio Mine, Choix, Sinaloa, Mexico.
Measures 8.7 cm by 8.5 cm by 4.2 cm in  total wise.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Tucson2013-277MWCrocoiteRedLeadMineAustralia105mm.jpg (39099 bytes)
Tucson2013-277b.jpg (56636 bytes)

MIN#Keystone-171

Huge crystal of gemmy reddish-orange Crocoite!
This crystal measures 10.6 cm in length! It's the largest single Crocoite crystal I've ever offered
and it's incredibly flashy with well striated, lusterous surfaces. As one would expect, the crystal did
come apart under its own weight and has been professionally repaired. The termination is also not
complete so the crystal isn't perfect. It makes up for its imperfections with sheer size and eye appeal.
From the Adelaide Mine, Dundas Mineral Field, Zeehan District, Tasmania, Australia.
Measures 10.6 cm by 1.1 cm by 1 cm in total size.

Ex. Webb Mineral Collection
Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Tucson2012-112NevadaOrpiment.jpg (144363 bytes)

MIN#Keystone-172

Neat specimen of mustard-yellow Orpiment crystals in cluster!
I must admit that I've never offered a specimen of Orpiment from this locality before.
The Roberts Mountains are in the middle of nowhere in the center of Nevada
but they
produce some good looking Orpiment. This specimen is in excellent condition with only
minor contacts. The largest crystal at top measures about 3 cm in size and the luster of all
ranges from satiny to glassy on the back. The only point of trimming is along the far right edge.
From Roberts Mountains, Eureka County, Nevada.
Measures 6.7 cm by 4.8 cm by 3.8 cm in total size.

Price $385

SALE DISCOUNTED TO ONLY $185!

To Order This Specimen, Please Click Here!

 

Tucson2011-94BrazilHeliodor.jpg (177658 bytes)

MIN#Keystone-173 SOLD!

Gemmy specimen of attached Beryl var. Helidor crystals!
Glassy and gem, this specimen is doubly terminated (both crystals!) with partially
etched terminations. Oddly enough, the faces exhibit no etching and are all completely
smooth and reflective. The color is a brilliant yellowish-green with plenty of internal glow.

From Minas Gerais, Southeast Region of Brazil.
Measures 5.8 cm by 2.3 cm by 1.2 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Tucson2012-38CelestineMonroeCountyMichigan55mm.jpg (235979 bytes)

MIN#Keystone-174

Tabular crystals of misty-blue Celestine with Calcite on matrix!
Fine specimen with perfectly terminated Celestine crystals, both of which are
pristine. The largest measures 3 cm in length
and smaller crystals surround it at
the base along with several tan Calcites. The specimen is well trimmed and aesthetic.
From Maybee, Monroe County, Michigan.
Measures 5.6 cm by 5.4 cm by 3.6 cm in total size.

Price $485

SALE DISCOUNTED TO ONLY $250!

To Order This Specimen, Please Click Here!

 

Tucson2011-19MonteCristoMineRushAKSmithsonite.jpg (322599 bytes)

MIN#Keystone-175

Lustrous growths of pearly Smithsonite atop Cadmium Smithsonite covered matrix!
A unique specimen that I rarely encounter at the shows. The white Smithsonite is actually
colorless clusters of Smithsonite crystals which take on a "bubbly" appearance. There are
some small single crystals scattered about between the clusters but the crystal habit can
be easily seen with a 16x loupe. Beneath these are clusters of Cadmium-rich Smithsonite!

From the Monte Cristo Mine, Rush, Rush Creek District, Marion Co., Arkansas.
Measures 12.4 cm by 14.2 cm in size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Tucson2012-16CopperBisbeeArizona56mm1075.jpg (240805 bytes)

MIN#Keystone-176 SOLD!

Classic specimen featuring sharp, well formed crystals of Native Copper!
The antique patina on this specimen is totally original, indicating that this specimen
has not been messed with over the past 100 or so years since it was mined. Lustrous
shades of golden-brown and red cover these fine crystals with a slight accenting of green
Malachite at the edges. The crystals are distinct and as impressive as those from Michigan.

From the 2200 Level, Campbell Shaft, Bisbee, Cochise County, Arizona.
Measures 5.7 cm by 3.5 cm by 3.9 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

To Order This Specimen, Please Click Here!

 

Tucson2011-23ElmwoodFluoriteSphalerite.jpg (186308 bytes)

MIN#Keystone-177

Transparent purple cubes of Fluorite atop lustrous Sphalerite matrix!
Good looking specimen of Fluorite with a dozen cubes scattered atop the Sphalerite.
In good shape overall with only some incompleteness along the left trimming edge.

From the Elmwood Mine, Smith County, Tennessee.
Measures 7.5 cm by 7.7 cm by 6 cm in total size.

Price $485

SALE DISCOUNTED TO ONLY $250!

To Order This Specimen, Please Click Here!

 

Tucson2011-128TopazShigarValleyPakistan77mm.jpg (178244 bytes)

MIN#Keystone-178

Gemmy golden Topaz crystal snug between Albite blades with Schorl Tourmaline!
This 2.5 cm Topaz crystal is complete and gem with better than average color. A second
smaller Topaz can be seen on the back side and an smaller third Topaz is visible on the
far right. Schorl crystals are scattered about, accenting the otherwise colorless Albite.

From the Shigar Valley, Skardu District, Baltistan, Northern Areas of Pakistan.
Measures 6.5 cm by 7.2 cm by 6 cm in total size.

Price $895

SALE DISCOUNTED TO ONLY $450!

To Order This Specimen, Please Click Here!

 

Tucson2013-221FluoriteonQuartzafterCalciteTombstoneHillsAZ.jpg (165338 bytes)

MIN#Keystone-179

New find of Purple Fluorite on Quartz ps after Calcite!
This unique Fluorite specimen is from the Tombstone Hills near Tombstone.
Specimens appeared in Tucson for the first time. The locality is a new find and
a closely held secret but I hope to see more in the upcoming shows. The Fluorites
are mainly octahedral in habit with a matted luster and translucent interiors. They
cover most of the Quartz casts ps after Calcite crystals on both sides of the matrix.
From the Tombstone Hills, near Tombstone, Cochise County, Arizona.
Measures 9.2 cm by 8 cm by 5.7 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Denver2011-46SilverNewNevadaMineMexico30mm.jpg (189359 bytes)

MIN#Keystone-180

Stunning specimen featuring fine Native Silver dendritics on matrix!
I love the perfect Spinel Twin crystal that rises vertically atop the specimen!
An .8 cm Acanthite crystal is located just below the Spinel Twin at 9 o'clock.
From the New Nevada Mine, Batopilas, Chihuahua, Mexico.
Measures 3.1 cm by 3 cm by 2.2 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Denver2012-135GoldHarvardOpenPitMineJamestownCA.jpg (45580 bytes)

MIN#Keystone-181 SOLD!

Gorgeous leaf of reddish tinted Native Gold on bright white Quartz!
This super lustrous crystalline leaf has some of the prettiest patina I've seen on
a Gold specimen. The colors range from red to orange to yellow on the far right.
From the Harvard Open Pit Mine, Jamestown, California.
Measures 1.1 cm by .8 cm by .7 cm in total size.

Price $285

SALE DISCOUNTED TO ONLY $150!

To Order This Specimen, Please Click Here!

 

Denver2013-25SmithsoniteChoixMexico12cm.jpg (131508 bytes)

MIN#Keystone-182

Lustrous specimen of lavender Smithsonite atop matrix!
The botryoidal surfaces of this lovely specimen are basically flawless with no major contacts
and a beautiful, pinkish-violet coloration. The luster shimmers atop the rolling Smithsonite and
lighter patches of coloration provide contrast and additional color to this cabinet sized plate.

From the El Refugio Mine, Choix, Mun. de Choix, Sinaloa, Mexico.
Measures 11.3 cm by 8.8 cm by 4.4 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

To Order This Specimen, Please Click Here!

 

Denver2012-133LeafGoldYandalWesternAustralia.jpg (112071 bytes)

MIN#Keystone-183 SOLD!

Brilliant specimen of semi-crystalline Native Leaf Gold on a bit of matrix!
The luster and brilliance of this fine Gold Leaf is amazing and the surface is covered with
small flattened trigon crystals which formed within the tight recesses of the matrix seam.
From the Yandal Greenstone Belt, Leonora Shire, Goldfields-Esperance region, Western Australia, Australia.
Measures 2.3 cm by 2.3 cm by 1.7 cm in total size.

Price $585

SALE DISCOUNTED TO ONLY $300!

To Order This Specimen, Please Click Here!

 

Denver2011-49HubeiteInesiteChina.jpg (180252 bytes)

MIN#Keystone-184

Fine Quartz crystal with pink Inesite sprays and brown Hubeite accents!
Also with sparkling Apophyllite. An attractive combo featuring a full termination on
the Quartz point and multiple sprays of hot pink Inesite with multiple Hubeite clusters.

From the Dayai Mine, Huangshi Prefecture, Hubei Province, China.
Measures 7 cm by 4.7 cm by 4.8 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

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Denver2009-169shinychrysocolla.jpg (142198 bytes)

MIN#Keystone-185 SOLD!

Glossy, bubbly surfaces of Chrysocolla with Malachite!
A beautiful plate which is covered by a thick layer of very shiny Chrysocolla.
No damage to speak of except along the outer trim zone. A very pretty mix of blue and green!

From Katanga (Shaba), Democratic Republic of Congo.
Measures 7.4 cm by 9.2 cm in size.

Price $685

SALE DISCOUNTED TO ONLY $350!

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Denver2011-30BariteFrizingtonEngland55mm.jpg (142387 bytes)

MIN#Keystone-186

Fine cluster of terminated Barite crystals on Hematite matrix!
The specimen is in excellent condition with just minor contacts on a few crystal surfaces.
Only the normal trimming zone incompleteness is present. The matrix is a concave Hematite
cast which ranges from red to silvery grey. It serves as the perfect base for this glassy xl cluster.

From the Mowbray Mine, Frizington, West Cumberland Iron Field, Cumbria, England.
Measures 6 cm by 6.2 cm by 4.4 cm in total size.

Ex. Howard Belsky Mineral Collection (Label Included)
Price $985

SALE DISCOUNTED TO ONLY $500!

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Denver2010-43greenapophyllite.jpg (184377 bytes)

MIN#Keystone-187

Pretty green crystals of Apophyllite with Stilbite on matrix!
The crystals are cubic in habit with modified corners and quite translucent with transparency
near the edges. Stilbite blades are scattered about and clustered near the lower right edge.

From Jalgaon,
Maharashtra State, India.
Measures 8.6 cm by 10.2 cm by 4.5 cm in total size.
Price $650

SALE DISCOUNTED TO ONLY $325!

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Denver2010-63pyromorphite.jpg (204739 bytes)

MIN#Keystone-188

Classic specimen of glossy yellowish-green Pyromorphite in a matrix vug!
The botryoidal surfaces of this specimen are so glossy and dazzling that you might
be fooled into thinking this is Smithsonite! No damage to speak since the Pyros are
neatly tucked away inside matrix vugs on both the front and backside. Very nice!!

From La Vidale, Asprières, Decazeville, Aveyron, Midi-Pyrénées, France.
Measures 8 cm by 6 cm by 5 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

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Denver2010-45stankminecalcite.jpg (143966 bytes)

MIN#Keystone-189

Fine cluster of Calcite crystals on matrix!
At least a dozen terminated Calcites cover this matrix and all are terminated! A faint reddish-
orange color accents some of the crystals as is probably the result of Hematite influence.
In excellent condition with one incomplete Calcite crystal which has fully rehealed.

From the Stank Mine, Barrow, Cumbria, England.
Measures 5 cm by 4.8 cm by 3.8 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

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Denver2010-66peruvianBarite.jpg (185551 bytes)

MIN#Keystone-190

Fine plate featuring gemmy Golden Barite tabs on matrix!
This specimen was mined in 2005 and is in excellent condition with no damage to speak
of. The largest horizontal blade measures 3.3 cm in width. The upright blade is 2.6 cm.

From Cerro Warihuyn, Miraflores, Huamalias, Huanuco, Peru.
Measures 6.3 cm by 8.5 cm by 4.3 cm in total size.

Price $485

SALE DISCOUNTED TO ONLY $250!

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Tucson2012-488RutileQuartzKapuldzmykAzerbaidzman39mm.jpg (230951 bytes)

MIN#Keystone-191 SOLD!

Great looking combo featuring an orange Quartz point with a large Rutilte crystal!
These stunning combos appeared on the market for a short time in the 1990s and quickly
disappeared. I rarely see any these days but this one popped up at the show and I grabbed.
The Rutile is extremely shiny and lustrous and measures 2.4 cm in size. Its orange Quartz
crystal companion measures 1.3 cm in size. Both crystals are complete with full terminations.

From Mount Kapydzhik, Nakhchivan Autonomous Republic, Azerbaijan.
Measures 3.7 cm by 4 cm by 2.2 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

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Denver2012-53SillverSmithsoniteChoixMexico.jpg (157330 bytes)

MIN#Keystone-192

Superb, lustrous specimen of brilliant silver colored Smithsonite!
Very lustrous with satiny-smooth surfaces. The color is a deep silver with frosted accents.
No damage to speak of and no visible contacts anywhere atop the attractive rolling surfaces
.
From Choix, Mun. de Choix, Sinaloa, Mexico.
Measures 6.5 cm by 11 cm by 7.7 cm in total size.

Price $985

SALE DISCOUNTED TO ONLY $500!

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Denver2009-135spanishsilver.jpg (109182 bytes)

MIN#Keystone-193

Fine wires and crystals of Native Silver in Calcitic matrix!
This is part of a small batch of Silvers from recent workings at the old Balcoll Mine.
The Balcoll Mine was worked by the Romans for Silver for decades and is obviously
still loaded with fine specimens. An Acanthite coating darkens some of the wires.
From the Balcoll Mine, Falset, Tarragona, Catalonia, Spain.
Measures 5.5 cm by 3.7 cm in size.

Price $850

SALE DISCOUNTED TO ONLY $425!

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Denver2013-164ChalcopyriteSweetwaterMineMissouri65mm.jpg (292998 bytes)

MIN#Keystone-194

Incredibly irridescent crystals of Chalcopyrite on Dolomite covered matrix!
The intensity of the reds, blues, purples, and golds in combination with the incredible flash and luster
make these some of the most popular specimens from the Sweetwater locality. The Chalcopyrite crystals
measure to .8 cm in size and are scattered atop the pearly Dolomite covered matrix. In excellent condition.
From the Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds Co., Missouri.
Measures 6.7 cm by 5 cm by 2.5 cm in total size.

Price $685

SALE DISCOUNTED TO ONLY $350!

To Order This Specimen, Please Click Here!

 

Denver2013-65MWHematiteSouthAfrica33mm.jpg (213625 bytes)

MIN#Keystone-195

Awesome combination featuring Hematite crystals with Andradite Garnet and Calcite!
The two largest Hematite crystals criss-cross at the center and both are super lustrous and doubly
terminated! They are accented by reddish Andradite Garnets, with some actually embedded inside
the Hematites, indicating that the Hematites grew around the Garnets and completed their crystal
forms. There is barely a contact anywhere - Only a few incomplete Garnet crystals near the bottom.
From the Wessels Mine, Hotazel, Kalahari Manganese Fields, Northern Cape Province, South Africa.
Measures 3.3 cm by 2.8 cm by 2.7 cm in total size.

Ex. Webb Mineral Collection
Price $785

SALE DISCOUNTED TO ONLY $400!

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Denver2013-163MalachiteTsumebNamibia5cm.jpg (274021 bytes)

MIN#Keystone-196

Impressive miniature featuring sharp crystals of Malachite ps after Azurite with Duftite!
I was taken by this specimen and the sharpness of its undamaged crystals which measure
to 2.3 cm in size. They rise vertically at the bottom before criss-crossi
ng at the top. The
surfaces of each crystal are in excellent condition with a soft chatoyant luster due to the
alteration to Malachite from Azurite. Azurite is still present with Duftite at the edges.
Circa 1970 - From the Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia.
Measures 4.8 cm by 3.8 cm by 3 cm in total size.

Price $1500

SALE DISCOUNTED TO ONLY $750!

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Denver2013-76AllargentumBouismasMineMorocco3cm.jpg (153253 bytes)

MIN#Keystone-197

Sharp crystals of Allargentum with Dyscrasite, Schachnerite, Native Silver, and Actinolite!
This is a great looking specimen featuring very distinctive and lustrous crystals set among
sprays of Actinolite. The Actinolite is heaviest at the bottom but is present among the crystals
at the very top as well. I've seen larger specimens of this material but this had the best crystals.
From the Bouismas Mine, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco.
Measures 3.5 cm by 2.2 cm by 1 cm in total size.

Price $785

SALE DISCOUNTED TO ONLY $400!

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Denver2009-154covelliteblades.jpg (188023 bytes)

MIN#Keystone-198

Covellite!! Fine clusters blades of iridescent Covellite on matrix!
Both sides are covered with blades that range in color from reddish-purple to blue and gold!

From the Leonard Mine, Butte, Silver Bow County, Montana.
Measures 5.6 cm by 8.8 cm in total size.

Price $895

SALE DISCOUNTED TO ONLY $450!

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Denver2011-36ChinaSulfurPlate.jpg (252146 bytes)

MIN#Keystone-199

Unique specimen featuring flat Sulfur crystals on sparkling drusy Quartz!
These appeared over a decade ago and I haven't seen any since. The initial find must of been
quite small. This was one of the largest plates I could find when they first appeared from China.
The Sulfur crystals are somewhat flat with shiny, glassy surfaces. Interesting and attractive.

From the Xikuangshan Sb Deposit, Lengshuijiang Co., Loudi Prefecture, Hunan Province, China.
Measures 9.5 cm by 12 cm by 3.5 cm in total size.

Price $895

SALE DISCOUNTED TO ONLY $450!

To Order This Specimen, Please Click Here!

 

 

Tucson2012-334MimetiteSanPedroCorralitosMexico9cmALT.jpg (245734 bytes)

MIN#Keystone-200

Lustrous specimen of Mimetite from the famed San Pedro Corralitos!
This is a very 3-dimensional specimen as the photo indicates. There are two layers of Mimetite
here, both displaying satiny, lustrous surfaces and they cover the matrix as it opens up in the middle.

The specimen has a few very minor contacts along the upper edge but these are very difficult to see
and don't detract. The matrix edge on the upper level has been stabilized to prevent any shedding.
From the Congreso-Leon Mine, San Pedro Corralitos, Mun. de Casas Grandes, Chihuahua, Mexico.
Measures 6.8 cm by 8.6 cm by 6.5 cm in total size.

Price $2500

SALE DISCOUNTED TO ONLY $1250!

To Order This Specimen, Please Click Here!
* Pay For This Specimen Over 2 Months Using Our Layaway Option! *

 

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