MIN#DENVER2021-78 NEW!

MAJOR RARITY! Very rare specimen featuring a thin layer of Native Silver atop Chalcocite from the Tsumeb Mine!
Fine examples of Native Silver from the Tsumeb Mine are rare enough but this specimen exhibits a nearly 3 cm
Native leaf Silver atop the center crystal faces of the grayish-iridescent Chalcocite! Also with Quartz along the edges.
From the Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia.
Measures 6 cm by 6.7 cm by 4.6 cm in total size.
Ex. Uli Bahmann Mineral Collection
Price $4500

MIN#DENVER2021-79 NEW!

Spectacular cluster of Quartz var. Citrine crystals with Scepter tipped terminations!
This is an incredible display specimen and it can be displayed in a myriad of ways due to the
positioning of the large scepter-tipped crystals. One thing I want to point out is that this is not
a small specimen. It is borderline large cabinet with the main center crystal measuring nearly
18 cm in length. The crystals are included by a green mineral, probably Chlorite, along the lower
right edge, before changing over to a beautiful deep orange along their lengths. The crystals then
terminate with colorless scepters. The surfaces of the crystals are textured by hundreds of small
faces which reflect the light and create an intense sparkle. The scepters are smooth and glassy.
This is a superb Quartz specimen from a recent find and it is in excellent condition, top to bottom.
From Huanggang Mine, Hexigten Banner, Ulanhad League, Inner Mongolia Autonomous Region, China.
Measures 17.8 cm by 17 cm by 8.2 cm in total size.
Price $4850

MIN#DENVER2021-80 NEW!

Exceptional specimen featuring a brown Fluorite set atop white Calcite crystals inside a matrix vug!
A perfect stepped cube of rootbeer-brown Fluorite measuring 2.5 cm in size is perfectly set among bright
white Calcite scalenohedrons which line the interior surfaces of the matrix pocket. In excellent condition.
From the Pint's Quarry, Raymond, Black Hawk County, Iowa.
Measures 9.2 cm by 9.2 cm by 3.2 cm in total size.
Ex. Jacques Evlard Collection
Price $1850

MIN#DENVER2021-81 NEW!

Gemmy yellow crystals of Sulfur on Aragonite matrix!
This is a gorgeous specimen with two gemmy Sulfur crystals sitting atop the white Aragonite matrix.
Both crystals are sharp and complete with few contacts and a strong satiny luster. The largest of the
two measures nearly 3 cm in size. There are some smaller bitumen included Sulfur crystals atop the matrix
adding originality to the specimen which dates back to the early 1900's when Sicily was a major Sulfur source.
From the Agrigento Province (Girgenti Province), Sicily, Italy.
Measures 7.3 cm by 10.4 cm by 7 cm in total size
Price $2850

MIN#DENVER2021-82 NEW!

Large, translucent Calcite crystals perched atop Quartz crystal matrix!
This is the perfect companion piece for the Azurite above. It's the finest Calcite plate I've seen
in a long time from the old Bisbee District. There are very few in the way on contacts and none of
these detract from the specimen. The crystals are glassy and tranlucent with pearl-like brilliance.
There are nearly a dozen crystals here with the largest measuring to 3.5 cm in width. A lovely piece!
From Bisbee, Cochise County, Arizona.
Measures 10 cm by 10.4 cm by 6.2 cm in total size.
Ex. Bideaux Mineral Collection
Price $1500

MIN#DENVER2021-83 Sold!

Lovely specimen featuring stacked crystals of Manganoan Calcite forming pillars in cluster!
These lovely pink Calcite specimens are of recent discovery and consist of numerous stacked crystals
which rise upwards atop one another, forming a skyline of pillars. There is no matrix as the specimen
is all Manganoan Calcite, from top to bottom.  The surfaces are super glassy and lustrous and there
is no damage to speak of. The color could best be described as a glowing, translucent pastel-pink.
From the Shizhuyuan Mine, Dongpo Ore Field, Yizhang Co., Chenzhou Pref., Hunan Province, China.
Measures 9.5 cm by 14 cm by 8 cm in total size.
Ex. Dawson Calcite Collection
Price $1850

MIN#DENVER2021-84 NEW!

Beautiful specimen displaying large, translucent Calcite blades sitting stop golden-brown Calcite rhombs!
This is a flashy two-toned Calcite combo which is super glassy and lustrous along well striated crystal blades.
The golden-brown Calcites are highly glassy and provide both a color and crystal habit contrast. No detractions.
From Fountain Valley, Cripple Creek District, Teller County, Colorado.
Measures 4.6 cm by 7.2 cm by 7.5 cm in total size.
Ex. Willard Wulff Mineral Collection
Price $785

MIN#DENVER2021-85 NEW!

Classic rarity! Fine crystals of Calcite on matrix from St. Andreasberg!
This locality was an old Silver Mining District in Germany but today all the mines are long
since closed and reclaimed for the most part. I don't come across many fine Calcite plates
from this locality and all date back to the late 1800's or early 1900's. This plate consists of
dozens of translucent, stacked Calcite crystals which formed scalendohedral-like pillars atop
the Sulfide mineral and Dolomite covered surface. Beautifully preserved with few contacts.
From St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany.
Measures 7.7 cm by 6.2 cm by 5.4 cm in total size.
Comes with old original display label
Price $2450

MIN#DENVER2021-86 NEW!

Colorful combination of blue Azurite crystal balls on green Malachite matrix!
These are some of the most attractive combos but I rarely see them anymore.
The blue Azurite balls are textured and contrast beautifully atop the Malachite.
From the Lost Lake Claim, Nacimiento Mine, Cuba, New Mexico.
Measures 5.3 cm by 6.6 cm by 2.3 cm in total size.
Price $485

MIN#DENVER2021-87 NEW!

Large, lustrous crystal of Acanthite ps after Argentite!
We acquired a collection of this very large, super lustrous Acanthite crystals while in Denver
and they are quite the sight to see. Most if not all display some hoppering indicating a very quick
formation as the Acanthite pseudomorphed the higher temperature Argentite. Exceptional crystal!
From Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico.
Measures 3.7 cm by 2.8 cm by 2.3 cm in total size.
Price $2500

MIN#DENVER2021-88 NEW!

Eye catching specimen featuring crystals of Native Copper sitting atop Quartz crystals!
From the Quincy Mine, Hancock, Houghton County, Michigan.
Measures 3.2 cm by 6.6 cm by 3.7 cm in total size.
Price $1250

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MIN#DENVER2021-89 NEW!

Tremendous plate featuring fine dendrites of Native Silver with Acanthite and Safflorite accenting!
This is a wonderful display piece from the classic Cobalt Mining District and is literally covered from one
end to the other with large dendritic structures of Native Silver. A peppering of grey Safflorite covers much of the
dendrites as does Acanthite drusy. This is incredible rich specimen and the display is beautifully presented atop white
Calcite covered surface. Much more impressive in person due to the difficulty of photographing sparkling surfaces.
From the Castle Mine, Haultain Township, Cobalt-Gowganda Region, Timiskaming District, Ontario, Canada.
Measures 10.2 cm by 12.5 cm by 3.9 cm in total size.
Ex. Bishop Mineral Collection
Price $2500

MIN#DENVER2021-90 Sold!

Great looking arrangement of orange Selenite crystals in cluster!
These beautiful specimens come from a small salt lake just to the west of the small
town of Chinkapook. This is one of the prettier specimens I've seen recently and the
crystals are well terminated and super glassy with translucency. In excellent condition.
From Chinkapook Lake, Towan Plains Faunal Reserve, near Chinkapook, Victoria, Australia.
Measures 7.4 cm by 7.7 cm by 7.2 cm in total size.
Price $685

MIN#DENVER2021-91 NEW!

Brilliant surfaces highlight this plate featuring large cubic Galena crystals with Galena octahedrons on Dolostone!
The large Galenas at top sit atop the edge of the plate and display full crystal faces on both sides of the plate. The
largest cube measures over 5 cm in size. Galena octahedrons cover both sides of the Dolostone matrix with a
scattering of golden Chalcopyrite crystals. In excellent condition with lots of brilliance and luster on both sides.
From the Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds County, Missouri.
Measures 11.5 cm by 10 cm by 5.4 cm in total size.
Ex. Kimball Goddard Mineral Collection
Price $1850

MIN#DENVER2021-92 NEW!

Great combination specimen of Calcite crystals with yellow Barite on Sphalerite!
Great looking specimen featuring a large vertical Calcite crystal along the far left edge
with dozens of yellow Barite tabs draping over the center portion of the matrix. A second Calcite
lays horizontally along the base of the specimen. Both are terminated. In excellent condition.
From the Denton Mine, Hardin County, Illinois.
Measures 5.5 cm by 6.9 cm by 4.2 cm in total size.
Ex. Tom Wiesner, Brown Mineral Collections
Price $585

MIN#DENVER2021-93 NEW!

Large lustrous Galena cube with yellow Calcite crystals on matrix!
I love this specimen. The cube is super lustrous with mirror-bright faces on all sides
and measures 10 cm in size across the corners. It is complete and uncontacted on every
face and is accented by several yellow Calcite crystals atop the right side face, with a few of
them being doubly terminated. This is a specimen with presence and a very impressive display.
From the Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds County, Missouri.
Measures 14 cm by 9.7 cm by 9.5 cm in total size.
Price $1850

MIN#DENVER2021-94 NEW!

Beautiful specimen of Vanadinite crystals in cluster!
Impressive specimen featuring reddish-orange Vanadinite crystals measuring to over 1.3 cm in size!
The surfaces are in excellent condition with a glassy luster with only a couple of tiny contacts that
do not detract. It's not often I find a cluster with such large crystals and deep color that is this good.
From Mibladen, Midelt, Khénifra Province, Meknès-Tafilalet Region, Morocco.
Measures 3.7 cm by 3.1 cm by 2.7 cm in total size.
Price $685

MIN#DENVER2021-95 NEW!

Exceptional Calcite crystal sitting atop Barite from Colorado!
This is a rare specimen featuring a large Calcite crystal atop Barite from Otero County, Colorado.
This is the finest specimen I can remember offering from Otero County and they are definately not
common in this size or quality. Most are found by cracking open nodules/concretions in the local
Cretaceous-aged Pierre Shale. This large 7.5 cm Calcite is lustrous, translucent and exceptional.
From La Junta, Otero County, Colorado.
Measures 9.5 cm by 7.4 cm by 5.7 cm in total size.
Ex. H. R. McBroom Collection
Price $1450

MIN#DENVER2021-96 NEW!

Excellent mix of Fluorite with Quartz crystals and Ferberite!
A great looking combination of minerals from the Yaogangxian Mine. The Ferberite
crystals are sharp, shiny black, and lustrous. They are bordered along the front with
crystal-clear Quartz points and modified purple Fluorite cubes. In excellent condition!
From the Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China.
Measures 6 cm by 4.5 cm by 5 cm in total size.
Price $685

MIN#DENVER2021-97 NEW!

Fine locality specimen of white Calcite crystals over brown Calcite stalactites!
The inner cores of these two lustrous pillars are brown Calcite stalactites and this is visible
from the bottom side. The outer layer consists of very lustrous and glassy Calcite crystals
of the purest white. These crystals completely cover all sides and form a "mushroom" top at
the tip of the stalactites with the left side tip being the largest and widest. Virtually pristine.
From the Buffalo Mine, Lion Hill area, Ophir District, Oquirrh Mts, Tooele County, Utah.
Measures 7 cm by 6.2 cm by 4.5 cm in total size.
Price $685

MIN#DENVER2021-99 NEW!

Fine specimen featuring a transparent Topaz crystal on Smoky Quartz with Albite!
Talk about gemmy, this crystal is so clear that I can read through it with ease. It's as clear as
come of the finest Quartz crystals I've seen and it is completely doubly terminated with a perfect,
textbook termination and glassy crystal faces. The Topaz is hugged by Smoky Quartz on the back side.
From Erongo Mountain, Erongo Region, Namibia.
Measures 4.8 cm by 2.9 cm by 2.4 cm in total size.
Price $985

MIN#DENVER2021-100 NEW!

Aesthetic specimen featuring tan Quartz crystals atop Galena and Pyrrhotite crystals!
Classic old combination piece and one that is well balanced and completed damage free.
From the Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico.
Measures 6.8 cm by 7 cm by 5.4 cm in total size.
Price $785

MIN#DENVER2021-100b NEW!

Impressive large plate featuring dozens of sharp Native Copper crystals with Atacamite accenting!
This is a gorgeous specimen which displays beautifully and is covered with numerous well formed Copper crystals,
all clustered atop a solid Copper base. The patina is an original mix of reds and oranges with green Atacamite accents
imparting addition color. There is also minor white Calcite between most of the Copper crystals which are somewhat
tabular in form, almost chisel-tipped. A classic specimen from the 1890's mining period. It can also stand on its own!
From the Phoenix Mine, Phoenix, Keweenaw County, Michigan.
Measures 17.6 cm by 16.5 cm by 7.7 cm in total size.
Price $2850