The Denver 2017 Mineral Showrooms

* Re-Updated January 1st, 2018 *

 

MIN#Denver2017-61 NEW!

Tremendous German Classic featuring wires of Native Silver with Acanthite, Acanthite ps Silver, and Polybasite between layers of Dolomite matrix!
This is a museum quality specimen which dates back to the late 1700s - early 1800s and is as original as fine German Silvers come! It is literally, a thick
seam of Silver wires intertwined with Silver mineral crystals which are running between layers of Hematite stained Dolomite matrix. It is quite heavy,
attesting to the richness of the Silver content, and very aesthetic from various display angles. It would look great on a rotating base with Silver wires
and crystallization showing from all sides. Looking at the specimen, one is taken by the incredible richness of the seam and the number of wires which
cover the sparkling crystalline Silver beneath. I've seen many German Silvers in my collecting days and this specimen would rank near the very top,
especially if one is looking for a top end matrix specimen. In excellent condition with an incredible display and no damage or contacting to speak of.
From the
Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Saxony, Germany.
Measures 9.6 cm by 6.1 cm by 5.9 cm in total size.

Ex. W. Paar Mineral Collection
Price $34,500

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MIN#Denver2017-62 NEW!

Exceptional plate featuring gemmy crystals of Scheelite with Beryl var. Aquamarine on Muscovite!
What a Scheelite combination plate this is! Three Scheelite crystals of deepest color with an intense luster
that jumps out and grabs you at first sight, sit alongside numerous transparent tabular crystals of Aquamarine.
And if that weren't enough, the interiors of the Scheelites are mostly gemmy!  The Scheelites measure to 3.3 cm
in size and all three crystals are well matched. No contacts except for the normal ones along the trimming edge.
From Mt. Xuebaoding, Pingwu County, Sichuan Province of China.
Measures 8.3 cm by 9.7 cm by 5.4 cm in total size.

Ex. Steve Smale Mineral Collection

Price $8500

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MIN#Denver2017-63 NEW!

Rare specimen of Golden Calcite crystals in cluster  atop white Calcite from Arkansas!
This is easily the finest Calcite specimen I've ever seen from the Smith Quarry in Arkansas and it's also the
largest. The Calcites are mostly doubly terminated and closely resemble what you would see in an Elmwood
specimen. They are glassy and lustrous with plenty of transparency throughout, allowing for the easy passage
of light and a strong internal glow! The largest two Calcites at center measure 12 cm and 11 cm in size and
are both twinned. There are some natural cleaves, as found, but they are not really noticeable and do not detract
from what is a very impressive, large cabinet sized centerpiece. Scarce locality and don't know when I'll find another.
From the Smith Quarry, Black Rock, Lawrence County Zinc District, Lawrence County, Arkansas.
Measures 15.7 cm by 16.8 cm by 17.6 cm in total size.

Ex. Lee B. Burnett Mineral Collection (Collected March 1987)
Price $3450

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MIN#Denver2017-64 NEW!

Beautiful blue Barite clusters on golden Calcite on Fluorite!
The blue Barite crystals clusters are in excellent condition, measuring to 3.4 cm in size as they
sit atop the Golden Calcites covering the purplish and yellow Fluorite which serves as the base for
this lovely combination. The Barites are glassy and transparent with a frost-blue coloration. Very nice!
From the Minerva #1 Mine, Hardin County, Illinois.
Measures 8.2 cm by 6.8 cm by 6.1 cm in total size.

Price $985

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MIN#Denver2017-65 NEW!

Sharp, deep blue crystal of Lazurite sitting atop white Marble matrix!
This is a impressive crystal, with perfect habit and very sharp corners. It measures 3.4 cm in size and has
smooth, lustrous faces with only some minor matrix influence on the back side. Several smaller Lazurite
crystals are embedded in the front side Marble matrix below the main crystal. No damage or contacts.
From Sar-e Sang, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan.
Measures 7 cm by 8.6 cm by 5.4 cm in total size.

Price $3500

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MIN#Denver2017-66 NEW!

Absolutely beautiful specimen of Quartz crystals with large Calcite rhombs!
I love this specimen! The aesthetics are off the charts but it's also scarce because I don't see specimens
of Quartz and Calcite of this quality from Switzerland very often. The Quartz crystals are super glassy and
lustrous with full tips and only the tiniest of micro-chips here and there. The Calcite rhombs exhibit a rolling,
satiny, almost resinous luster and display shades of light tan to a deeper tan with a micro-crystalline speckling
along the right crystal faces. The specimen sits on its own with need for a base and is in excellent condition.
From Piz Beverin, Mathon, Schams, Hinterrhein Valley, Grischun (Graubünden), Switzerland.
Measures 9 cm by 12.6 cm by 7.8 cm in total size.

Ex. Huber Mineral Collection
Price $3500

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MIN#Denver2017-67 NEW!

Stunningly beautiful specimen featuring a Rhodochrosite rose sitting atop matrix!
This is easily the finest Kazakhstan Rhodochrosite specimen I've seen in well over a decade!
I rarely see these Rhodochrosites in the marketplace and when I do, they are usually small and
or opaque with significant problems. This is a gorgeous, flower shaped cluster of gem quality
Rhodochrosite crystals, elongated into blade-like rhombs. The blades exhibit a deep coloration
and sit atop a matrix of Muscovite, Calcite, and Pyrite. I can't stress how rare a specimen of
quality is from Kazakhstan. This is a specimen worthy of the finest Rhodochrosite collections!
From Kounrad Massif, Balkhash, Balkhash Region, Karagandy Province, Kazakhstan.
Measures 4.6 cm by 3.3 cm by 3.6 cm in total size.

Price $2850

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MIN#Denver2017-68 NEW!

Extremely rare specimen of Phosphophyllite crystals on matrix from Germany!
This is an incredibly rare cluster of greenish-blue Phosphophyllites from the Type Locality at the Hagendorf North Pegmatite in Bavaria, Germany.
The lustrous and gemmy crystals are well-formed, measuring to .9 cm in size, and are nestled in a Mica and Quartz matrix. Phosphophyllite was
discovered in 1920, and this piece most certainly dates back to the early 1900's. Although not one of the famous Bolivian specimens, this is an
very important and classic specimen from the actual Type Locality! This is a rare opportunity for collectors. The Hagendorf Quarry closed in 1937.
From the Hagendorf North Pegmatite, Waidhaus, Upper Palatinate, Bavaria, Germany.
Measures 4.2 cm by 3.8 cm by 2.2 cm in total size.

Ex. Kay Robertson Collection
Price $2850

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MIN#Denver2017-69 NEW!

Incredible specimen featuring Rhodochrosite ps after Clam Shells inside a larger, open shell!
I can't recall a better, more aesthetic specimen from this unique and quite scarce find that I am told
is now mostly gone. Specimens of these bizarre pseudomorphs appear every now and then in the
marketplace and are mostly from older collection as this one is. Few have such a lovely arrangement
with complete, unbroken shells and no damage. The color is also quite good. Exceptional specimen!
From the Kerch peninsula, Crimea peninsula, Crimea Oblast', Ukraine.
Measures 7.6 cm by 6 cm by 3.9 cm in total size.

Price $1850

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MIN#Denver2017-70 NEW!

Fine old specimen of semi-crystalline Native Gold in and on Quartz matrix from Montana!
Super rich and super brilliant, this is the richest Montana Gold I've seen in quite some time. The Gold
appears inside a concave matrix recess and scattered about in small openings here and there about the
Quartz. It is semi-crystalline in structure with some smaller crystals and leaves in the lustrous mix.
The Gold cavity shown in the picture above measures 4 cm in size from top to bottom. Very impressive.
From the Keystone Gold Mine, Lincoln County, Montana.
Measures 5.7 cm by 4.7 cm by 6.3 cm in total size.

Ex. Karl Fair (1974), Mike Groben Mineral Collections
Comes with a display label
Price $5500

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MIN#Denver2017-71 NEW!

Fine specimen featuring gemmy Golden Topaz crystals with Muscovite on Cleavelandite!
This lovely specimen displays rich color and has been beautifully trimmed to display
the Golden Topaz at their finest. The Topaz crystals measure 2.5 cm by 1.7 cm in size.
They are both super gemmy with glassy, reflective crystal faces! Bronze colored Muscovite
blades provide the perfect framing and along with Cleavelandite, flank the Topaz on both sides.
From Dassu, Braldu Valley, Skardu District, Baltistan, Gilgit-Baltistan, Northern Areas of Pakistan.
Measures 3.3 cm by 6.6 cm by 3.4 cm in total size.

Price $1450

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MIN#Denver2017-72 NEW!

Dazzling spheres of crystalline Malachite on seams of Cobaltoan Dolomite!
I can't stress just how intense the flash and sparkle is atop these shimmering Malachite crystal spheres!
It made taking a photograph almost impossible. The crystal spheres are in excellent condition with barely a
contact mark anywhere. The reddish-brown seams of Cobaltoan Dolomite provide the perfect color contrast.
From the Kakanda deposit, Kambove District, Katanga (Shaba), Democratic Republic of Congo (Zaïre).
Measures 4.6 cm by 5 cm by 4.5 cm in total size.

Price $895

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MIN#Denver2017-73 NEW!

Scarce and very impressive specimen of Spinel Twin Galena crystals with golden Fluorite!
This fine specimen is among the best Illinois Galena specimens I've offered on the website and I believe
it is also the first with golden Fluorite. All the others were associated with either purple or blue Fluorite.
The Galena cubes climb atop one another, forming an aesthetic towering structure of twinned crystals
which is interspersed with Fluorite cubes. The Galenas are bright and lustrous and contacts are minimal.
From the Cave-in-Rock District, Hardin County, Illinois.
Measures 14.5 cm by 11.8 cm by 7.5 cm in total size.
Collected in the 1950's - Ex. Phillips Mineral Collection

Price $1500

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MIN#Denver2017-74 NEW!

Sparkling specimen featuring bluish-green Cuprian Adamite crystals on matrix!
This old timer dates back to the 1890's when it was offered by famed dealer George L. English. His original label
is included with the specimen. The specimen is very attractive with little in the way of contacts which is remarkable
considering its age. The crystals are small but their number makes up for this. They cover nearly every part of the
matrix with glassy crystal clusters. In excellent condition, this specimen is a true classic in every sense of the word.

From the
Hilarion Mine, Agios Konstantinos, Lavrion District (Laurium), Attiki Prefecture (Attica; Attika), Greece.
Measures
6.4 x 6.8 x 4.2 cm in total size.
Ex. George L. English, O. Ivan Lee Collections
Price $1450

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MIN#Denver2017-75 NEW!

Super bright and lustrous Native Silver dendrites after Allargentum and Dyscrasite with Actinolite on Calcite!
A dazzling specimen which is completely crystalline and extremely aesthetic. The specimen can be displayed from either
side and displays fine crystalline dendrites on both the front and back. The structure is incredibly sharp with Silver crystals
forming the majority of the arborescent dendrites. The stark white Calcite and greenish Actinolite are the perfect backdrop.
From the Bouismas Mine, Bouismas, Bou Azzer District, Tazenakht, Ouarzazate Province, Drâa-Tafilalet Region, Morocco.
Measures 4.6 cm by 2.8 cm by 1.8 cm in total size.

Ex. Phillips Mineral Collection
Price $685

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MIN#Denver2017-76 NEW!

Glowing plate featuring gemmy cubes of golden Fluorite with bluish zoning and a large crystalline Sphalerite!
This is a beautiful Fluorite plate with great color, good form, and a strong glassy luster over gemmy interiors.
The crystals are a deep golden color with a light blue zoning at the edges which highlights the crystal structure.
A large, lustrous Sphalerite cluster is the perfect backing for this fine plate. In great shape with only tiny contacts.
From the Denton Mine, Harris Creek Sub-District, Hardin County, Illinois.
Measures
6.3 cm by 9.5 cm by 10 cm in total size.
Ex. Paone Mineral Collection
Price $1850

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MIN#Denver2017-77 NEW!

Large blade of very iridescent Covellite rising up from Pyrite crystals atop matrix!
Covellite is one of the more difficult minerals to find and this is the first specimen I can
recall finding with a single, upright blade, sitting so perfectly with Pyrite atop matrix. The blade
is complete, measuring 2.4 cm in size, and displays a vivid transition from blue to a gorgeous
reddish-purple along the top edge. Smaller Covellite blades are scattered about near the base
and back side. This is a specimen that can be displayed from either side. In excellent condition.
From the Leonard Mine, Butte, Silver Box County, Montana.
Measures 3 cm by 2.8 cm by 2 cm in total size.

Price $1500

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MIN#Denver2017-78 NEW!

Brilliant crystal cluster of frosted tipped gem Calcite crystals!
This is a stunning work of natural art with its transparent, lead-crystal like Calcites and flat, frosted terminations.
Looking at the specimen, one is reminded of a chandelier, and when rotated under a light source, the crystals reflect
light in nearly the same way. For what this specimen lacks in color, it makes up for in brilliance! In excellent condition.
From the Aurora Mine, Charcas, Mun. de Charcas, San Luis Potosí, Mexico.
Measures 7.2 cm by 12 cm by 8.2 cm in total size.

Ex. Webb Mineral Collection
Comes with a custom made, labeled display base
Price $6500

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MIN#Denver2017-79 NEW!

Beautiful cabinet sized plate of Manganoan Smithsonite on matrix!
This was one of the most attractive Tsumeb Smithsonites at the show with crystals to 1.2 cm in size and
flashy, lustrous surfaces. I love the two-toned appearance of the plate and I believe the grayish zones are
also filled with additional Smithsonite crystals which have been coated by another mineral. The reddish
crystals may be a second generation of crystallization which covered the earlier one and this means the
entire specimen, front and back, is covered by Smithsonite crystals of two different colors. Very nice
with only minor contacting scattered about. The layered appearance of this specimen is quite unique.
From the Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region, Namibia.
Measures 7.2 cm by 11 cm by 6.8 cm in total size.

Comes with a custom made, engraved display base
Price $3500

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MIN#Denver2017-80 NEW!

Unique specimen featuring Golden Beryls with stacked Aquamarine crystals and Albite!
The Goshnite Beryls along the left side are colored golden-orange by a slight inclusion of
Hematite and they are separated from the pure blue Aquamarine crystals by sharp, well
formed white Albite crystals. A unique, pristine specimen that is truly two-dimensional!
From the Pingwu Beryl Mine, Mt Xuebaoding, Mianyang Prefecture, Sichuan Province, China.
Measures 7.2 cm by 4.6 cm by 4 cm in total size.

Price $2850

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MIN#Denver2017-80b NEW!

Great looking plate featuring red rhombs of Rhodochrosite with Fluorite, Tetrahedrite and needle Quartz!
Also with Pyrite crystals, this is a wonderful specimen which is literally covered from one end to the other with
Rhodochrosite rhombs of varying size. The rhombs are translucent to gemmy and measure to 1.5 cm in size.
They are surrounded and in some cases topped by Quartz crystals and many of the rhombs climb atop the
Tetrahedrite clusters and Pyrite crystals which are scattered about the matrix. The interesting thing about
this specimen is that it is almost completely crystalline with the back side covered with a Quartz druse and the
only point of visible matrix attachment located near the tip at the far left. In great condition with trivial contacts.
From the Blue Moon Pocket, Sweet Home Mine, Alma, Park County, Colorado.
Measures 7.7 cm by 15.2 cm by 8.2 cm in total size.

Ex. Paone Mineral Collection

Price $5450

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MIN#Denver2017-80c NEW!

Rare specimen of Pyromorphite with Wulfenite and Calcite crystals from Mexico!
This specimen dates back to the 1880's-1890's and was once in the collection of the U. S. National Museum.
The original museum label that accompanies the specimen is stamped with the date of Oct. 10, 1927 but dates
prior to 1911 due to the inclusion of Division of Mineralogy on the label. After 1911, this name was changed.
The specimen is in excellent condition with no visible scuffs or contacts on the greenish-yellow Pyromorphite.
Mindat.org only shows one photograph of Mapimi Pyromorphite so it is quite rare. This is the only one I've seen.
From Mapimí, Mun. de Mapimí, Durango, Mexico.
Measures 9.7 cm by 6.8 cm by 5.4 cm in total size.

Ex. United States National Museum Division of Mineralogy Collection (comes with original label)
Price $2850

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MIN#Denver2017-80d NEW!

Gemmy crystals of golden-brown Sphalerite sitting atop fine grey cubes of Galena!
This is an exceptional plate from the famous Creede Mining District and it displays
some of the gemmiest Sphalerite crystals I've ever seen from Creede. They look more
like gemmy Garnets than Sphalerites. The Galenas are sharp and lustrous and the entire
specimen has a very impressive appearance with no damage or detractions anywhere.
From the Emperius Mine, Creede District, Mineral County, Colorado.
Measures 8 cm by 6.5 cm by 2.8 cm in total size.

Ex. Kay Robertson Mineral Collection

Price $1500

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