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130 specimens listed
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Copper - branching crystals
stock #20.1-305-(LW1019)
Santa Rita, Grant County
New Mexico, United States
3.3 x 2.6 x 1.2 CM (small miniature/ large thumbnail (toenail))
price: $65


A complex branching Copper specimen composed of many small crystals in stacked or aligned arrangements. Good patina, the color ranges from a dark that is almost black to a red copper hue. A multitude of tiny crystals in many divergent habits are best appreciated under magnification.
Chalcocite pseudo after Covellite - Classic USA
stock #13.1-375
Leonard Mine, Butte, Silver Bow County
Montana, United States
3.4 x 3.3 x 2.2 CM (small miniature/ large thumbnail (toenail))
price: $2400


Fantastic form and a killer pseudomorph. This vintage Butte specimen shows perfectly the form of the original Covellite crystals which are almost fully replaced by Chalcocite. It looks like a tiny bit of Covellite may remain on the backside, but if so it is minor. This is an early specimen with excellent provenance, a tattered Roy Hopping (NYC Mineral dealer vintage 1898) label is included. This was also in the collection of Louis Zara (famed NYC collector, author and publisher of the Mineral Digest. His label is also included. The specimen is in exceptional condition, fully undamaged and attractive from almost any angle. Well-crystallized Covellite is remarkably rare worldwide with only two significant localities, both long closed. It is even less common to see a well-defined pseudomorph with sharp crystals like this.
Vesuvianite -
stock #18-AX-22-088
Jeffrey Mine, Asbestos
Quebec, Canada
3 x 1.7 x 1.4 CM (small miniature/ large thumbnail (toenail))
price: $360


A vividly colored, complete, doubly terminated crystal (a "floater") with no matrix. From the Jeffrey Mine which is the only locality that ever produced such colorful Vesuvianite. Highly lustrous in person the crystal has is mostly a mix of green hues from dark to lighter yellowish and has one spot of purple. In fine condition, the faces on this are multi stepped and quite a bit more complex than most crystals from this famed locale. The mine has been closed for years but the heritage of its minerals is world renowned. Choice
Chalcedony/ Amethyst
stock #20.1-278
Mamuju area, Sulawesi Barat province
Sulawesi Island, Indonesia
3.3 x 2.4 x 2 CM (small miniature/ large thumbnail (toenail))
price: $90


Esthetic and withy nice form from the incredible find at Mamuju, Sulawesi (Indonesia). The less common green balls mixed with purples makes a nice contrast. This important discovery yielded some large and impressive pieces, but good thumbnails like this were much less common. This is a colorful and high impact small piece that is an elegant sculpture. From one of the best modern mineral discoveries.
Axinite - Gemmy crystals
stock #20.111
New Melones Spillway (Dam site), Calaveras County
California, United States
3.8 x 2.3 x 2.3 CM (small miniature/ large thumbnail (toenail))
price: $300


A very glassy cluster of transparent Axinite crystals from the collection of Brett Keller (Mineral wines). The new Melones Spillway of Calaveras county had a small but exceptional find in the 1970's. The Axinite (Ferro-Axinite) are considered to be among the best ever found in the USA. This piece is A choice small miniature that could perhaps be trimmed to thumbnail size. It has choice color, luster and transparency. No damage seen by naked eye but with a good loupe a few micro rough bits can be found. This is in far better condition than most, very close to full perfect.
Dioptase
stock #12.1-017
Tantara Mine, Shinkolobwe, Central Area
Katanga (Shaba), Democratic Republic of Congo (Zaire)
3.3 x 2.8 x 1.8 CM (small miniature/ large thumbnail (toenail))
price: $240


Emerald green and glassy Dioptase crystals in a very nice cluster from the Tantara Mine (Katanga). The largest crystal is just under 2 CM, there is no matrix just pure Dioptase in very good condition as seen. The Dioptase from Congo does not have the ultra bright luster of a fine Tsumeb specimen but can be a bit brighter than many from Kaokoveldt. This piece is of that sort, better in person and quite esthetic. Congo Dioptase is not often available, it seems to be found every decade or so in small batches and then there are none for years. This was mined in 2012.
Beryl Var Goshenite -Highly etched crystal.
stock #16.1-332
Urucum Mine, Galileia
Minas Gerais, Brazil
3.8 x 2.6 x 1.8 CM (small miniature/ large thumbnail (toenail))
price: $440
Spring 2020

Perfect, gemmy and absolutely colorless, this looks just like ice. A natural sculpture of a single etched Beryl crystal, this is also a complete floater. Every surface is complexly faceted, etched and undamaged. Not many minerals can exhibit this degree of sharp sculptural etching, however we see this with Beryl from a few finds and these can be incredible in person. True colorless Beryl (Goshenite) is also quite uncommon. This specimen is displayable from any side or angle, the larger faces are smoothly curved yet striated and it is fully transparent with no inclusions, veils or cracks. Choice gem..
SOLD Astrophyllite- rare Northeastern USA
stock #SOLD 20.1-166
Hurricane Mountain, North Conway, Carroll County
New Hampshire, United States
3.7 x 1.6 x .5 CM (small miniature/ large thumbnail (toenail))
price: $0
Spring 2020

A remarkable cluster of Astrophyllite crystals that at some angles looks almost like Brookite mass. No matrix and with a good brassy iridescent luster, this is the best example I have ever seen from the Northeastern USA, and very fine from anyplace. Collected by Les Hitchings sometime in the 60's on Hurricane Mountain, this is very unlike typical specimens that are more micacous or fibrous and lay flat on encasing matrix. Some references list Astropyllite as a "very rare" Potassium, Iron, Titanium Silicate mineral, but in recent years there have been many specimens from the Khibiny Massif coming out, so this is no longer such a rare specie. However, well defined crystals are still rare and this is a very choice example. The ends have some bruises or contacts but overall this is fantastic for a USA specimen.
130 specimens listed
Page   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |