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2317 specimens listed
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Creedite - Purple crystals, classic USA
stock #17.1-266
Tonopah Copper Mine, San Antonio Mountains, Nye County
Nevada, United States
6.5 x 4. x 4.3 CM (cabinet)
price: $280
Late Summer 2018

Bright purple transparent crystals of Creedite cover a face of a blocky Quartz matrix. From Nye County in Nevada which had been the best source of purple Creedites in the USA, these are now very rare on the market. Aside from this region and a few scattered localities in Colorado there are virtually no fine Creedites from the USA known, and purple is the least common color worldwide. These are very lustrous, clear, a nice violet and with good definition.

Bournonite with Sphalerite - French, unusual locale
stock #0934-JM-1400
Saint-Laurent-le-Minier, Gard
Occitanie, France
8.7 x 5.3 x 4.7 CM (cabinet)
price: $1200
Late Summer 2021

A cabinet sized cluster of intergrown Bournonite crystals with a scattering of sharp, lustrous Sphalerites. This is not from the famed region of Les Malines in Gard, well-known as a major classic locality for Bournonites, this specimen is from an unusual locality at Saint-Laurent-le-Minier which is also in Gard. Mindat list this as a source of Bournonite but has no examples pictured. These crystals are up to 2.6 CM and are covering almost the entire specimen. These have a dark patina, some edges show classic cogs-wheel form but most are prismatic and well-defined. The Sphalerites are a mixture of lustrous black and red-orange crystals some of which are transparent. The minerals coat the matrix everywhere except for a small spot on the underside. A choice French Bounonite with a little different look than the usual more metallic specimens. Ex John Marshall collection obtained by him in 1969.

Wulfenite with Calcite etc.
stock #21.1-332
Mina Ojuela, Mapimi
Durango, Mexico
3.6 x 3.3 x 2.6 CM (small miniature/ large thumbnail (toenail))
price: $90
Late Summer 2021

Older blocky style Wulfenite crystals with small Calcites on gossan matrix. The majority of the large crystals are complete and slightly distorted with a burnt orange color and good luster. In good condition overall, some minor damage exists but is not very evident. Another modern classic from Ojuela.

Columbite
stock #8.AE-699
Sao Jose do Safira
Minas Gerais, Brazil
4.1 x 3.1 x 1.5 CM (miniature)
price: $180
Late Summer 2021

A single, blocky but somewhat tabular Colombite crystal. Distinct although rather crude, the crystal is fully terminated and moderately lustrous. An older piece from Sao Jose do Safira (Brazil) this is a very good miniature of this commercially important pegmatite mineral that is not often considered "pretty".

HOLD Dioptase
stock #HOLD 21.1-191
Sanda Hills, Mindouli, Mindouli District
Pool Department, Republic of Congo (Brazzaville)
2.6 x 1.2 x .6 CM (thumbnail)
price: $360
Late Summer 2021

A killer thumbnail of gemmy Dioptase in elongated crystals. In perfect condition and with excellent form, this is from the recent finds in the Sanda Hills of the Republic of Congo. The Dioptase is all translucent and the termination areas are also transparent. The whole piece has a glassy-bright luster. It is hard to fully appreciate or see the rich emerald color of these crystals on a computer but the color in person is rich and saturated.

SOLD Halite and Tolbachite - hoppered crystals
stock #SOLD 21.1-185
Polkowice-Sieroszowice Mine, Glogow County
Lower Silesian Voivodeship, Poland
5.2 x 3.6 x 1.8 CM (small cabinet/ large miniature)
price: $0
Late Summer 2021

Impressive structure and textbook form on these hoppered Halite crystals from the remarkable finds at Polkowice (Poland). The Halite is colored green by the rare mineral Tolbachite and also has inclusions we are told of some Bitumen, Sulphur and Covellite. Inclusions aside these are amazing in form and well-presented as sharp, undamaged modified cubes that show the incredible natural structure perfectly. This is from a fairly recent find that we consider to be one of the best in the mineral world, with great esthetics and an excellent value.

Cobaltoan Calcite
stock #21.1-188
Agoudal Mine, Bou Azzer
Draa-Tafilalet Region, Morocco
4.2 x 3.8 x 2.8 CM (miniature)
price: $390
Late Summer 2021

Intense color and well formed crystals of Cobaltoan Calcite with a strong visual impact. From the mines at Agoudal (Bou Azzer, Morocco) which have produced some of the best of these, and many other important Cobalt minerals. Crystals on this reach 1.4 CM but most are smaller. Cobaltoan Calcites at Bou Azzer is found in zones every few years, most is more pale than this specimen.

Chrome Tremolite - gem crystal
stock #21.1-181
Merelani Hills, Lelatama Mountains, Simanjiro District
Manyara Region, Tanzania
5.7 x 1.5 x .6 CM (cabinet)
price: $790
Late Summer 2021

A large, choice and gemmy Chrome Diopside crystal. This comes from the best locality for this uncommon variety of Tremolite, the Merelani Hills famed for its Tanzanite. Very little has been available for the past few years and usually much smaller. This is a very large crystal for the specie, the color is slightly zoned from a bright apple green at the base to a more yellow-green below the termination. The termination is somewhat crude but complete with several separate points and some dark inclusions. The crystal is well-striated giving a silky look to the sides of the prism. This is fully transparent so it does not need any backlight to show off the color.