Fine Showroom Specimens Discounted up to Half Price!

* Updated April 8th, 2018 *

MIN#Keystone-203

Lustrous crystals of Hematite ps after Magnetite with Hematite!
I've seen dozens, if not hundreds of these pseudomorphs over the years but none of them
compared to the aesthetic appearance of this fine specimen. The crystals of are various shapes
and sizes, with the largest elongated crystal at the top measuring 4.5 cm in length! Other crystals
are pure octahedron but all have pyramidal terminations. The crystal faces are extremely lustrous
and bright with the only exception being the reddish-brown Hematite crystals which add great contrast.
From the Payún Volcano, Altiplano de Payún Matru, Mendoza, Argentina.
Measures 5.7 cm by 4.6 cm by 3.2 cm in total size.
Price $1250

SALE DISCOUNTED TO ONLY $750!

MIN#Keystone-207 Sold!

Lustrous Ferberite crystals with Fluorite and Quartz!
This is neat looking combo piece from the finds that came to market about a decade or so ago.
Two lustrous and perfectly terminated Ferberite crystals are separated by lavender Fluorite
cubes and Quartz points. In very good condition with no problems and an aesthetic display.
From the Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China.
Measures 5.7 cm by 4.5 cm by 3.8 cm in total size.
Price $895

SALE DISCOUNTED TO ONLY $485!

MIN#Keystone-208

Fine specimen featuring Native Copper atop and inside a large glassy Calcite crystal!
A really neat combo, the Native Copper portion extends horizontally some 6.3 cm. It also
appear along the left side of the Calcite crystal. The front side of the Calcite is perfect
while the back side has some cleaves where the specimen was separated from the matrix.
From Houghton County, Michigan.
Measures 6.4 cm by 6 cm by 4.6 cm in total size.
Price $1500

SALE DISCOUNTED TO ONLY $750!

MIN#Keystone-210

Large, impressive specimen featuring powder-blue Celestine blades standing upright atop matrix!
A lovely plate that is completely covered by freestanding Celestine, measuring to 6+ cm in length.
The blades are translucent mostly, with some transparency near the tips. The color is a constant
powder-blue or light sky-blue with a slight amount of orange-brown accenting along the edges and
backsides of several of the larger Celestines. In excellent condition with only a few minor contacts.
Rare specimen. From the San Rafael District (San Rafael Swell), Emery County, Utah.
Measures 9 cm by 16.8 cm by 5.5 cm in total size.
Price $2850

SALE DISCOUNTED TO ONLY $1425!

MIN#Keystone-211

Fine crystal of Cerussite set atop matrix from Tsumeb!
This is a really nice example of Cerussite from one of the classic localities for the mineral.
What strikes me about this specimen is the depth of the crystal. The glassy, highly lustrous
spokes extend back over 3 cm, making this an extraordinarily deep crystal considering the
overall size. The specimen is in excellent condition with only a scattering of tiny edge contacts.
It's translucent to transparent with am intense luster and flash that rolls across the surfaces.
From the Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia.
Measures 4 cm by 3.2 cm by 3.3 cm in total size.
Ex. Keller Mineral Collection
Price $1850

SALE DISCOUNTED TO ONLY $925!

MIN#Keystone-214 Sold!

Breathtaking plate of deep sky-blue Hemimorphite on matrix!
The surface of this fine specimen is botryoidal with a satiny, almost waxy luster. The color is a rich
blue which is somewhat reminiscent of Kelly Mine Smithsonite. This is a tall, attractive plate. It is
well trimmed and free of any distracting surface contacts. A plate that would make a fine centerpiece.
From the Wenshan Mine, Wenshan Co., Wenshan Autonomous Prefecture, Yunnan Province, China.
Measures 13.5 cm by 11.5 cm by 3.3 cm in total size.
Ex. K. Cooper Mineral Collection
Price $3500

SALE DISCOUNTED TO ONLY $1750!

MIN#Keystone-215

Beautiful specimen featuring two terminated Golden Calcites attached with full terminations!
Bright golden-yellow and perfectly terminated, these two crystals make a wonderful display. All the
crystal surfaces are uncontacted and shimmer with a flowing glassy luster. The interiors are translucent.
From Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois.
Measures 8 cm by 6.2 cm by 5.4 cm in total size.
Ex. Dawson Calcite Collection
Price $1500

SALE DISCOUNTED TO ONLY $895!

MIN#Keystone-216 NEW!

Beautiful golden-yellow Selenite twinned crystals in a ball cluster!
This specimen glows under lighting and is also very fluorescent and phosphorescent!
From what I've been told, this locality is not producing much of anything these days and
specimens are becoming hard to find at the shows. Gemmy and in excellent condition.
From the Red River Floodway in Winnipeg, Manitoba, Canada.
Measures 5.5 cm by 6.4 cm by 5.3 cm in total size.
Price $785

SALE DISCOUNTED TO ONLY $400!

MIN#Keystone-217 Sold!

Fine crystal sprays of blue Aurichalcite with glassy clear Hemimorphite clusters!
A fine looking Aurichalcite from a locality I don't see often - Box Elder County, Utah.
The delicate crystals are in excellent condition with no contacting or bruising to speak of.
From the Tecoma Hill Mines, Lucin District, Pilot Range, Box Elder County, Utah.
Measures 6.2 cm by 7.2 cm by 3.4 cm in total size.
Price $485

SALE DISCOUNTED TO ONLY $250!

MIN#Keystone-219 Sold!

Gemmy crystals of sceptered Amethyst inside a matrix recess!
This lovely specimen is from the same area from which Red Beryl is mined. The crystals
are super gemmy and terminated with a soft Amethyst blush. The Amethyst scepter in the
foreground measures nearly 4 cm. It is surrounded by numerous other crystals on the Rhyolite.
From the Rita Lynn Claims, Wah Wah Mountains, Beaver County, Utah.
Measures 7 cm by 10.2 cm by 7.8 cm in total size.
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-220

Gemmy crystals of amber Barite sitting atop bright yellow Calcite on matrix!
This is a great looking specimen, with at least four gemmy Barites, some of which
are doubly terminated, laying and sitting atop yellow Calcite crystals. The largest
Barite to the far right measures 3.2 cm in length. In excellent condition overall.
From the Elk Creek locality, Dalzell, Meade County, South Dakota.
Measures 8.6 cm by 7.8 cm by 4.2 cm in total size.
Price $1500

SALE DISCOUNTED TO ONLY $850!

MIN#Keystone-221

Gorgeous combination featuring glassy-green Vesuvianite with Hessonite Garnet!
Both the 2 cm long Vesuvianite crystals and the red Hessonites sit atop a matrix covered
by lustrous Clinochlore clusters. This is a superb old combo piece and the back side is
almost completely covered by Hessonite Garnet. The Vesuvianite are super glassy and
terminated, with a center cluster of at least half a dozen crystals. Very well preserved.
From Banchettes, Montjovet, Aosta Valley, Italy.
Measures 9.5 cm by 5 cm by 7.8 cm in total size.
Ex. Hebel, Trimingham Mineral Collections
Price $1850

SALE DISCOUNTED TO ONLY $985!

MIN#Keystone-227

Large and quite impressive cube of Galena set atop Fluorite and Quartz crystals!
These specimens are difficult to find, mainly because the Galenas are usually dull or coated.
This large 4.3 cm cube displays lustrous surfaces and sits perfectly between the reddish-purple
accented Fluorites octahedrons to its left and the sparkling Quartz crystals to its right. In great
condition with no detractions, this would make a great addition to a Fluorite or locality suite.
From the Mex-Tex Mine, Bingham, Hansonburg District, Socorro County, New Mexico.
Measures 8.8 cm by 9.4 cm by 5.7 cm in total size.
Price $1850

SALE DISCOUNTED TO ONLY $985!

MIN#Keystone-228 NEW!

Brilliant specimen of yellowish-orange Mimetite crystals on Limonite matrix!
This specimen is covered from one side to the other with fine yellow Mimetite crystals and
clusters and they sparkle wildly under even the faintest lighting. The plate is in excellent
condition with only the tiniest of contacts here and there. The matrix structure of the plate is
slightly concave and this has served to protect a good portion of the crystal clusters from any
rub or contacting. This is a great looking cabinet plate and one of the best I saw at the show.
From the Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico.
Measures 9.6 cm by 13.7 cm by 4 cm in total size.
Ex. Stoudt Mineral Collection
Price $2850

SALE DISCOUNTED TO ONLY $1425!

MIN#Keystone-229

Attractive plate of Enargite crystals with fine Quartz needle clusters!
This is one of those "black uglies" that is actually pretty good looking. The crystals are
much sharper than normal and evenly spaced atop the plate. The surfaces of the crystals
are incredible flashy with an intense sparkle in even faint lighting. Small clusters of fine
needle Quartz provide the perfect accenting along the top edge. This is a superb miniature.
From the Stewart Mine, Butte, Silver Bow County, Montana.
Measures 8.5 cm by 6.8 cm by 2 cm in total size.
Comes with an old original handwritten label
Price $950

SALE DISCOUNTED TO ONLY $475!

MIN#Keystone-230

Cabinet sized plate featuring lustrous crystal clusters of Pyrite on Marcasite!
These Pyrite clusters are in excellent condition and are formed from dozens of smaller
octahedrons. They measure to 6 cm in size and I count at least six clusters on this plate.
This is an old locality and specimens from here are quite scarce. The quarry is now flooded.
From the Rensselaer Quarry, Pleasant Ridge, Jasper County, Indiana.
Measures 14 cm by 11.2 cm by 6.8 cm in total size.
Price $1500

SALE DISCOUNTED TO ONLY $750!

MIN#Keystone-232

Large, impressive cluster of Milky Quartz crystals with green Chlorite inclusions!
This is the largest Milky Quartz I've ever seen from Mt. Ida and honestly, I haven't seen very many
as most that are found there are transparent, colorless rock crystal. The huge point on the left measures
21 cm in length while the crystal point on the right measures nearly 26 cm! Nestled between the huge
points are numerous smaller crystals and these are present on the back side as well. The left crystal
changes over to a nearly transparent Quartz near the top termination but the right crystal is all Milky
with a wonderful glassy luster covering the white cream surfaces where the Chlorite is not present.
There also appears to be a scepter or attempt at forming a scepter just below the termination.
From Mt Ida, Montgomery County, Arkansas.
Measures 23 cm by 28 cm by 22.4 cm in total size.
Ex. Kevin Ward Mineral Collection
Price $2850

SALE DISCOUNTED TO ONLY $1425!

MIN#Keystone-233

Cute miniature featuring Azurite crystals coated by green Rosasite!
The largest Azurite measures 1.6 cm across and both it and its smaller companions have very
distinctive habits despite being coated by the silky Rosasite. Small Rosasite crystals cover
nearly all of the surrounding matrix as well and there is a good amount of surface sparkle.
From the Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia.
Measures 4.2 by 6 cm by 3.5 cm in total size.
Price $685

SALE DISCOUNTED TO ONLY $350!

MIN#Keystone-239 NEW!

Sweet cluster of Calcite rhombs accented by olive-green Duftite!
This specimen has a structure that resembles two pillars, side by side,
completely formed from white Calcite rhombs overlayed with a sparkling
coating of green Duftite. One rhomb peeks through at lower left but the
vast majority of Calcites are covered by the Duftite. In excellent condition.
From the Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia.
Measures 6.4 cm by 4.2 cm by 3.8 cm in total size.
Ex. Jim Robinson Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-244

Aesthetic specimen featuring a mix of Galena crystals with Ankerite!
The Galena cubes are slightly drusy covered and sparkle while small Quartz crystals
accent the top two crystals. The specimen is in excellent shape with 3 dimensionality!
From Waterblast Flat, Smallcleugh Mine, Nenthead, Cumbria, England.
Measures 6.5 cm by 5.2 cm by 4.2 cm in total size.
Price $1500

SALE DISCOUNTED TO ONLY $750!

MIN#Keystone-245

Well balanced combination of Golden Calcite and Galena cubes on a Sphalerite crystal!
In excellent condition and undamaged on all sides! The Golden Calcites are gemmy and
and the Galenas are complete and lustrous. Only a couple of minor bumps on the Sphalerite.
From the Tri-State Mining District, Joplin, Granby County, Missouri.
Measures 3.3 cm by 3.3 cm by 2.9 cm in total size.
Ex. Scott J. Williams Mineral Collection
Price $785

SALE DISCOUNTED TO ONLY $400!

MIN#Keystone-246

Pearly crystals of Smithsonite in cluster from Tsumeb!
A lovely cluster of lustrous, creamy-antique white Smithsonite crystals on matrix!
No detractions to speak of. Simply a well trimmed, well presented Smithsonite.
From the Tsumeb Mine, Tsumeb, Namibia, SW Africa.
Measures 4.5 cm by 6.4 cm by 3.8 cm in total size.
Ex. David Ferguson Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-247

Fine specimen of Azurite overgrowing Malachite ps after Azurite crystals!
An excellent example of mineralization in its various stages. The crystals are lustrous
and chatoyant both and in excellent condition. I detect no major contacts or blemishs here.
From the Sacramento Mine, Bisbee, Cochise County, Arizona.
Measures 5.8 cm by 3.8 cm by 2.5 cm in total size.
Ex. Graeme Reference Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-248

Rare and colorful mix of Native Gold with Atacamite on matrix!
This specimen looks like paint spots on matrix! These appeared about seven years ago and
have since disappeared from the market. A rare opportunity to purchase a very unique Gold!
From a locality near the Faride Mine in Sierra Gorda, Chile.
Measures 4 cm by 4 cm by 3.8 cm in total size.
Price $685

SALE DISCOUNTED TO ONLY $345!

MIN#Keystone-251

Beautiful polished slab of Variscite!
The entire specimen is an elongated nodule and while the color is wonderful,
I love the conglomerate "rocky" look of the bottom matrix! Perfect for jewelry!
From Fairfield, Oquirrh Mountains, Utah County, Utah.
Measures 11.8 cm by 8.5 cm by 2.8 cm in size.
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-254

Fine combo of brassy Marcasite crystals with brown Calcite!
An attractive specimen that displays very well the greenish-gold color of Marcasite. The crystals are
sharp and in excellent condition with good luster. They completely covered the rolling matrix and are
topped off by the small brown Calcite crystals which form grape-like clusters at the top and bottom.
Circa 1985 - From the Rensselaer Quarry, Pleasant Ridge, Jasper Co., Indiana.
Measures 11.4 cm by 5.3 cm by 5.2 cm in total size.
Ex. Russell Mineral Collection
Price $545

SALE DISCOUNTED TO ONLY $275!

MIN#Keystone-255

Interesting specimen featuring green balls of Cookeite on faden Quartz!
I don't see too many of these specimens and I was taken by the amount of coverage and the
aesthetic Quartz cluster at the very top. The Cookeite balls cover the specimen from one side to
the other and average around 2 to 3 mm in size. A good looking combo specimen with no distractions.
From the S.O.Y.H. Claim, Saline County, Arkansas.
Measures 8.8 cm by 11 cm by 3.3 cm in total size.
Ex. Clyde Hardin Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-256

Aesthetic arrangement featuring glassy greyish Calcite crystals with Malachite, Sphalerite, and Chalcopyrite!
The first thing I noticed about the specimen was the sharpness of the scalenohedral Calcite crystals and the
reflectivity of their glassy surfaces. Each crystal is phantomed and evidenced from the bottom side and all
are perfectly terminated. The two largest Calcites in the foreground rise vertically while the smaller Calcites
in the background point out towards the viewer. To the left and right sides are clusters of Malachite coated
Sphalerite crystals. These add a nice accent, as do the Chalcopyrites inclusions beneath the Calcite surfaces.
From the Huangshi Prefecture, Hubei Province, China.
Measures 7.7 cm by 12.3 cm by  5 cm in total size.
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-257

Bright yellow tabular crystals of Barite perched atop two large Calcite crystals!
There's also some Fluorite in the mix here but the main draw are the Barite crystals perched
atop and draping over the two nearly 3 cm Calcite crystals. I don't see too many of these combos
from Spain which is what attracted me to the specimen. Overall, it's in very good condition with
almost all contacts limited to only the back side, out of view along the trimming edge there.
From the Moscona Mine, Solís, Corvera de Asturias, Villabona mining area, Asturias, Spain.
Measures 7.3 cm by 5.3 cm by 4.6 cm in total size.
Ex. Nelson Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-258

Rare specimen of reddish Grossular Garnet with Adularia and Biotite Mica!
This is an obscure locality piece from Havilah, California that I've only seen once and this is it.
Mindat.org lists Grossular as a mineral found in this locality but there are no photos, attesting to
it's scarcity. The specimen is well rounded and balanced between the three main minerals. The
white Adularia crystals are opaque, with a really nice one near the center being doubly terminated.
The Grossular Garnet is mostly red with some orange mixed in and a nice semi-gloss luster. There
are some contracts but most are limited to the trimming edges. The center crystals are complete.
From Havilah, Clear Creek District, Kern County, California.
Measures 9 cm by 10 cm by 6.2 cm in total size.
Price $1500

SALE DISCOUNTED TO ONLY $750!

MIN#Keystone-259

Fine crystals of pinkish colored Stilbite crystals on matrix!
This plate is covered from one end to the other with glassy-lustrous Stilbite crystals, many of
which are doubly terminated "bowties". The largest of these measure to nearly 4.5 cm in size.
This is one of the better Zeolites I've seen in a while from this lesser known Washington locality.
From Lewis River, Skamania County, Washington.
Measures 9 cm by 15.3 cm by 5.3 cm in total size.
Ex. Schlichter, Martin Zinn Mineral Collections
Price $785

SALE DISCOUNTED TO ONLY $400!

MIN#Keystone-260

Classic old time specimen of Arsenopyrite crystals with Dolomite, Sphalerite, and Pyrite on matrix!
An impressive specimen from the Freiberg Mining District, dating back to the late 1890's! The fine
Arsenopyrite crystals are very sharp and lustrous and sit atop a matrix of tiny Quartz crystals. They're
also bordered by tan Dolomite xls. Sphalerite can be seen to the upper left and the matrix is mainly Pyrite.
From the Freiberg Mining District, Erzgebirge, Saxony, Germany.
Measures 5.3 cm by 7.5 cm by 3.6 cm in total size.
Ex. Col. J. H. Pratt, Paul Tucker Mineral Collections
Comes with two original antique handwritten labels
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-261

Pretty cluster of twinned Barite crystals on Quartz matrix!
This is an attractive specimen featuring baby-blue crystal blades of Barite, including a 2.8 cm
twinned crystal along the far right side. In very good condition with only a few tiny contacts.
From the Shirley Basin, Carbon County, Wyoming.
Measures 4 cm by 4 cm by 3.4 cm in total size.
Ex. Dyck Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-264

Bright yellow elongated crystals of Mimetite atop brown matrix!
One of the heaviest coverages of Mimetite I've seen from the Tsumeb Mine, this specimen
has hundreds of fine Mimetite crystals measuring to 1 cm in length. They are tightly clustered
along the top and extend downwards and appear atop the bottom matrix as well. Portions of the
Mimetite covered matrix juts outwards, giving a 3-dimensional appearance to the specimen.
From the Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia.
Measures Measures 6.7 cm by 7 cm by 3.4 cm in total size.
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-266

Finely crystalline specimen of Native Copper with reddish Cuprite crystals!
The Native Copper crystals make up the majority of this specimen but the Cuprite crystals
hold their own, covered a good portion of the Copper in the center. In great condition overall,
this is one of the largest Coppers I've seen from Chile in recent years and at this years show.
From the Manto Cuba Mine, Inca de Oro, Chañaral Province, Atacama Region, Chile.
Measures 9 cm by 8.5 cm by 5.5 cm in total size.
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-284

Lovely blue crystals of Barite on matrix!
This crystals are tabular in form and range from small and thin to large and thick, depending
on which side you're examining. The largest tab measures 3.3 cm in size and all are highly
lustrous. Many of the largest crystals have a frosted center. In great condition with full tabs.
Circa late 1960's - From the Minerva #1 Mine, Hardin County, Illinois.
Measures 3.6 cm by 5 cm by 3.3 cm in total size.
Ex. Bynum Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

MIN#Keystone-287

Fine specimen of Hematite colored reddish-brown Calcite crystals in cluster on Dolomitic matrix!
This a rarer locality specimen and one that is colored by Hematite. Even the Dolomite crystals atop
the matrix and beneath the Calcite crystals are colored brown by Hematite. The Calcites are sharp
and lustrous with only a few contacts near the edges. The matrix gives the specimen 3-dimensionality.
From the Ton Mawr Quarry, Taff's Well, Cardiff (Mid Glamorgan; Glamorgan), Wales, England.
Measures 4.6 cm by 6.7 cm by 3.6 cm in total size.
Ex. Dawson Calcite Collection
Price $1750

SALE DISCOUNTED TO ONLY $875!

MIN#Keystone-289 NEW!

Thick tabular crystals of Barite sitting atop violet-purple Fluorite!
A classic specimen from Colorado, this is first I've seen from this locality in almost a decade.
The condition is excellent and the surfaces are complete with very few contacts. A rare opportunity.
From the Colorado Fluorspar Co. Mine, Wagon Wheel Gap, Mineral County, Colorado.
Measures 12.4 cm by 13 cm by 4.8 cm in total size.
Ex. Bill Hayward Mineral Collection
Price $1450

SALE DISCOUNTED TO ONLY $725!

MIN#Keystone-291 NEW!

Exceptional crystal-clear Fluorite dodecahedron perched between Green Quartz
(Hedenbergite included) and atop Calcite! The glassy Fluorite itself is pristine and very
lustrous, measuring nearly 4 cm across the front. A smaller sidecart crystal is incomplete
on the backside but this doesn't affect the large Fluorite. Most of the Green Quartz
crystals are terminated with the largest being doubly terminated. The Calcites near
the bottom add a nice touch to what is a very attractive specimen of bygone mining.
From Dal'negorsk, Primorskiy Kray, Russia.
Measures 7.4 cm by 6 cm by 4.8 cm in total size.
Ex. Edward David Collection
Price $3450

SALE DISCOUNTED TO ONLY $1725!

MIN#Keystone-293

Rare and historical specimen of Chlorargyrite with Malachite from California!
These fine tan colored crystals of Chlorargyrite are framed by fibrous green Malachite.
The specimen is from the old mining town of Calico, San Bernardino County, California.
Calico was established in the 1880's as a Silver mining town and at its height had over 500
mines in operation. When the price of Silver declined in the 1890's, the town began to lose
population. When the Borax operation shut down in 1907, the desert town was completely
abandoned and became a ghost town. Today, Calico has been restored and is now a park.
Specimens from Calico are very rare in the marketplace and this is the first I've offered.
From Calico, Calico District, Calico Mts (Calico Hills), San Bernardino Co., California.
Measures 5.4 cm by 6.5 cm in size.
Ex. Don Belsher Mineral Collection
Price $1500

SALE DISCOUNTED TO ONLY $750!

MIN#Keystone-294 Sold!

Fine crystals of white Calcite set atop botryoidal yellowish-orange Smithsonite (Turkey-Fat)!
This is an interesting combo that differs from the yellow Smithsonites ps Dolomite I usually see
from the locality. This Smithsonite surfaces here are completely botryoidal in form and appear
mainly at the edges near the trimming border. In the middle of the specimen are small clusters
of Calcite. The crystals almost look like rosettes and contrast beautifully with the Smithsonite.
Overall, the specimen is in very good condition with the usual incompleteness along the edges.
From the Monte Cristo Mine, Rush, Rush Creek District, Marion County, Arkansas.
Measures 10 cm by 8.8 cm by 3.7 cm in total size.
Price $785

SALE DISCOUNTED TO ONLY $400!

MIN#Keystone-295 NEW!

Brilliant cluster of Quartz var. Amethyst crystals on matrix from India!
I don't find too many plates of Amethyst from India at the shows so this piece was quickly
acquired for the website. The crystals are extremely gemmy with a vibrant coloration beneath
super glassy crystal faces. The coverage of crystals is complete and very even across the matrix.
From the Kakamunurle Mine, Karur District, Tamil Nadu, India.
Measurements - 8.4 cm by 10 cm by 3.5 cm in total size (small cabinet)
Price $2500

SALE DISCOUNTED TO ONLY $1250!

MIN#Keystone-296

Large doubly terminated golden Calcite on Calcite covered matrix!
Gorgeous deep golden Calcite, displaying a perfect termination at both ends in addition to a
wonderful translucense. The surfaces are highly lustrous with no detracting contacts. The large
golden crystal sits atop a small amount of Calcite covered matrix, giving the piece a good solid base.
From Gallatin Canyon, Gallatin County, Montana.
Measures 7 cm by 14.8 cm by 7.3 cm in total size.
Ex. Dawson Calcite Collection
Price $3500

SALE DISCOUNTED TO ONLY $1750!

MIN#Keystone-297

Large cabinet plate featuring brilliant green crystal sprays of Atacamite on matrix!
This is a great looking specimen which is nearly covered end to end with these super reflective and
lustrous crystals. There are individual crystals measuring to 1 cm present atop the surface in addition
to radial sprays of Atacamite which roll the luster like a cartwheel. I don't detect any damage to the crystals
and the specimen is MUCH better in person since it is very difficult to capture its brilliance with a camera.
From the La Farola Mine, Cerro Pintado, Las Pintadas district, Copiapó Province, Atacama Region, Chile.
Measures 11.8 cm by 18 cm by 2.7 cm in total size.
Ex. K. Miller Mineral Collection
Price $2500

SALE DISCOUNTED TO ONLY $1250!

MIN#Keystone-300 Sold!

Multi-mineral combo featuring Tetrahedrite with Sphalerite, Pyrite, Dolomite on Quartz!
This is a showy piece. The Tetrahedrites are sharp and lustrous. The Sphalerite crystals
are gemmy amber-brown. The Pyrite cubes are bright and striated. The Dolomite appears
as crystal cluster balls and finally, the Quartz needles rise up from the matrix to hold it
all together. Any contacts are minor and easily lost in the rich association of minerals.
From Castrovirreyna District, Castrovirreyna Province, Huancavelica Department, Peru.
Measures 5.1 cm by 6.8 cm by 4.2 cm in total size.
Ex. Bill and Carol Smith Mineral Collection
Price $985

SALE DISCOUNTED TO ONLY $500!

- LINKS TO OTHER MINERAL SHOWROOMS -

Tucson 2016 | Denver 2017 | Tucson 2018 | Exceptional Showrooms

HOME | MINERAL AUCTION | SPECIMENS FROM PAST SHOWS | CONTACT US