Denver 2017 Mineral Showrooms
Re-Updated January 1st, 2018 *
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.
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
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
Measures 8.3 cm by 9.7 cm by 5.4 cm in total size.
Ex. Steve Smale Mineral Collection
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.
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.
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
Stunningly beautiful specimen featuring a Rhodochrosite rose sitting atop
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
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
Massif, Balkhash, Balkhash Region, Karagandy Province, Kazakhstan.
Measures 4.6 cm by 3.3 cm by 3.6 cm in total size.
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
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
with complete, unbroken shells and no damage. The color is also quite good.
From the Kerch
peninsula, Crimea peninsula, Crimea Oblast', Ukraine.
Measures 7.6 cm by 6 cm by 3.9 cm in total size.
Fine old specimen of semi-crystalline Native Gold in and on Quartz matrix from
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
Fine specimen featuring gemmy Golden Topaz
crystals with Muscovite on Cleavelandite!
This lovely specimen displays rich color and has been beautifully trimmed to
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
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.
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.
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
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.
Hilarion Mine, Agios Konstantinos, Lavrion
District (Laurium), Attiki Prefecture (Attica; Attika), Greece.
Measures 6.4 x 6.8 x 4.2 cm in
George L. English, O. Ivan Lee
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
Large blade of very iridescent Covellite rising up from Pyrite crystals atop
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
From the Leonard Mine, Butte, Silver Box County, Montana.
Measures 3 cm by 2.8 cm by 2 cm in total size.
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
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
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
formed white Albite crystals. A unique, pristine specimen that is truly
From the Pingwu Beryl Mine, Mt Xuebaoding, Mianyang Prefecture, Sichuan
Measures 7.2 cm by 4.6 cm by 4 cm in total size.
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
Measures 7.7 cm by 15.2 cm by 8.2 cm in total size.
Ex. Paone Mineral Collection
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
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)
Gemmy crystals of golden-brown Sphalerite sitting atop fine grey cubes of
This is an exceptional plate from the famous Creede Mining District and it
some of the gemmiest Sphalerite crystals I've ever seen from Creede. They
like gemmy Garnets than Sphalerites. The Galenas are sharp and lustrous and
specimen has a very impressive appearance with no damage or detractions
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
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