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2036 specimens listed
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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.

Wurtzite with Barite - historic/classic US
stock #18-AX-35-095
Gagnon Mine, Butte, Silver Bow County
Montana, United States
9.3 x 7.3 x 4.3 CM (cabinet)
price: $1250

A superb specimen of Wurzite from Butte, Montana that is a significant piece, despite being a "black ugly" one. Ex collection of Wallace Gould Levison which he obtained in 1903 from the Roth Collection. The locality detail is quite good for this period, this is attributed to the Gagnon Mine. The original price was $1.50 which was a lot of money at that time, I have not seen a better Wurtzite from Butte. Some Wurtzites from Butte are found to be Sphalerite after analysis, probably pseudomorphs. This was confirmed as Wurtzite but there is considerable Sphalerite as well. The Barite is present as small blades, a minor association. The Wurzites are clustered in shallow vugs and show the typical hexagonal form. The Levison label remains affixed to the specimen and we will provide a photocopy of the relevant page from the Levison collection ledger. This is a choice piece for any good Butte or Sulfide suite.

Digenite with Enargite, Arsenopyrite etc.
stock #13.1-243
Leonard Mine, Butte, Silver Bow County
Montana, United States
3.7 x 3.2 x 2.2 CM (miniature)
price: $130

Digenite is one of the "real mineral collector" species, it is rare in decent crystals and usually sooty black (ie ugly). The world's best Digenites all came from Butte Montana long ago. They are classics and only seen from the breakup of old collections. This specimen is a complex cluster of small crystals and masses along with Enargite in small lustrous crystals and related Sulfides. The Digenite is mostly the sooty black sort which is often a coating of Chalcocite. This is a nice specie sample in good condition and very entertaining to study under magnification. It is not beautiful to most people but it is rare, old and something special for Sulfide lovers.

Apophyllite, Hubeite and Quartz
stock #6.2-462
Fengjiashan Mine (Daye Mine), Daye County, Huangshi Pref.
Hubei Province, China
9 x 6.9 x 4.8 CM (cabinet)
price: $160

Windowpane type Apophyllite crystals mixed with sharp, transparent Quartz, and all dusted with tiny Hubeite crystals. A few of the smaller Quartz are Japanese twins. An attractive combination specimen in very good condition, the main Apophyllite crystals are undamaged. There is some minor chipping and damage on the outside edge where this was removed, overall in nice shape. The Hubeite, (this is the type locality), are numerous but tiny best seen with magnification. The Apophyllite is almost certainly Fluorapophyllite, it is what is known from here but as this piece has no confirming analysis we use only the group name. An attractive cabinet specimen with nice three-dimensional form. This find was made in 2006-7 and very little has come out since.

SOLD Elbaite - Historic, classic
stock #SOLD 20.1-293
Mount Mica, Paris, Oxford County
Maine, United States
4 x 2.4 x 1.8 CM (miniature)
price: $0

A jumbled mass of Elbaite crystals clustered together with no matrix. There are several different colors and habits, typical of a pocket floor "mess". An early Mt Mica specimen from the Wallace Gould Levison collection (1846-1921) obtained from T.F. Lamb in 1892. Levison purchased several such clusters and some small individual crystals. These had been recovered from the floors of pockets that had explosively decompressed long ago, causing much breakage and litter of crystal fragments which then were recrystallized and fused together. Most of the crystals here have at least one termination and show natural regrowth, with a dusting of tiny colorless tourmaline formed later as a new generation. These pocket floor Elbaite crystals were usually small and not of very high gem value but mineralogically fascinating. A nice example from this most historic USA gem locality of a type not often available today. The terminations are of several forms, prismatic, fibrous and flat, the colors are mixed greens and pinks with some colorless. The original Levison label is not present but we will send a photocopy of the pages of relevance from Levison's hand written collection catalog.

Grossular on Diopside - USA classic
stock #20.1-292
VAG Mine, Lowell & Eden
Vermont, United States
3 x 2 x .9 CM (thumbnail)
price: $390

An American classic. The most desirable of the famed "Eden Mills" garnets are the gemmy red-orange crystals on contrasting green Diopside crystals. This legendary quarry has been closed for decades, this style of Grossular is unique to the lower reaches of the site, it is quite different from anyplace else on earth. This is an especially cute thumbnail the small Garnet is an inter-grown trio of crystals that contrasts well with the matrix. In fine condition damage-wise by naked eye but with good magnification a chip is seen. Not for perfectionists but that keeps the cost well below normal market for a specimen of this sort.

Anglesite - gemmy crystals
stock #20.1-291
Touissit, Touissit-Bou Beker Dist., Jerada Province
Oriental Region, Morocco
1.7 x 1.1 x .8 CM (thumbnail)
price: $90

A cute thumbnail of light yellow Anglesite crystals in a slightly radiating cluster. These are transparent, glassy and sharp, this is also fluorescent an orange-red in long wave UV. The color is fully natural, some Anglesites were color enhanced in Morocco by dipping into a chlorine bleach. The results were deeper color but also an odd luster, this one is completely real. In good condition, all the terminations are perfect, there is contact/roughness on some of the lower sides only. Touissit has been closed for decades now but it was once a magnificent locale for fine lead secondaries.

Smithsonite - well-crystallized
stock #17.1-070
Otjikoto Region, Namibia
3.7 x 3.6 x 2.7 CM (miniature)
price: $280

Small miniature of well-formed, transparent elongated Smithsonite crystals from the great Tsumeb Mine. Remarkably this delicate specimen is perfect, no damage seen even under good magnification. In person these are very glassy and have a faint hint of yellow color, and at some angles the reddish matrix seen through the crystals gives a pink hue. I would call this close to colorless. Tsumeb was the source of so many colors, habits and associations for Smithsonite. This piece is really esthetic, it has a little Galena on the back side but the front is all nice Smithsonite.