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1768 specimens listed
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Torbernite
stock #15.1-453

Cornwall, England
2.7 x 1.5 x .5 CM (thumbnail)
price: $80


A crystalized thumbnail of Cornish Torbernite with a bright apple-green color. Ex Dr T.B. Wilson collection, we do not have a mine attribution for this piece although it looks like a great match to Old Gunnislake Mine, but that is not documented. There are many Torbernite locales listed in Cornwall, most have crude plates or scattered crystals, relatively few have rosettes and dense clusters. A colorful English piece that is reasonable in cost yet choice.
Quartz -gem clear on Marble
stock #19.1-081
La Facciata Quarry, Carrara, Massa-Carrara Province
Tuscany, Italy
7 x 5.9 x 5.1 CM (cabinet)
price: $250


The Marble Quarries of Carrara are world famous source of the highest quality carving and building stone. For centuries these Quarries were the first choice for a pure, brilliant Marble. They have also been the source of limpid Quartz crystals found on occasion that are impressive, colorless and perfect. This is a choice example of this sort of Quartz, flawless and transparent, sitting on the white Marble. The largest prism is a right handed Quartz 1.7 CM tall. A good find of these in 2018 yielded a nice selection of top quality pieces which are not very often available. We selected this from the lot of almost 100 pieces as a very good value, esthetic and with the classic presentation.
Pyrargyrite -classic, very rich
stock #18.1-272
Himmelsfurst Mine, Brand Erbisdorf, Freiberg
Saxony, Germany
7.5 x 7.2 x 5.3 CM (cabinet)
price: $1500


A really fine, large, heavy and rich Ruby Silver from the classic locality of Freiberg. Two large faces are densely encrusted with many dark to bright red crystals in several habits, and whole dosplays well from several angles. A few crystals have typical bruises the vast majority are perfect and the condition is far better than most of these old and delicate pieces. Some dark native Silver is also noted on the matrix. Displays well from several angles, the old label which had been affixed to the piece is damaged and incomplete but the word Frieberg is clear. We are informed that this matrix, habit and style is a perfect match for the Himmelsfurst mine and is clearly a very old piece. The Pyrargyrite is still a good red color despite the age and some darkening, much better than usually seen on these. The Pyrargyite is also set off by some associated milky Quartz and Calcite so it really stands out on display,. The crystals and rounded masses also are protruding well from the matrix which adds a good texture. A very choice, large classic European Ruby Silver that is especially fine in person.
Quartz- "prase" included by Hedenbergite
stock #19.1-084
Serifos Island, Cyclade Islands
South Aegean, Greece
5.5 x 3.1 x 1.7 (small cabinet/large miniature)
price: $90


A cute classic Greek "Prase" or "Prasm" Quartz with good green color, translucence and sharp tapering crystals. Serifos Quartz has been a long known and collectable variety, it has a very distinctive habit that is only known from a few other skarn deposits worldwide. These have become quite pricy on the market, this one is in good shape, has only very tiny chips that are hard to see by naked eye, and is very reasonably priced for one of these.
Calcite "butterfly twins" with Hematite
stock #18.1-657
Leiping Mine, Leiping, GuiyangCo., Chenzhou Prefecture
Hunan Province, China
4.3 x 3.2 x 2.7 CM (miniature)
price: $280


A juxtaposed pair of "butterfly" twin Calcites with bright faces, fine clarity and red Hematite phantoms. From the last mining at Leiping, these are excellent examples from this locality. These twins made big news in the mineral world when found in 2002, partly because they looked so much like the classic British twins from over a century ago. Sharp. clean and elegant these are modern classics that look like the vintage old world classics.
Hexagonite - rare terminated Mg Tremolite
stock #19.1-377
Gouverneur Mine, Fowler, St. Lawrence County
New York, United States
2.8 x .8 x .3 CM (thumbnail)
price: $800


A rare, choice gem clear thumbnail of lilac color Hexagonite (var of Tremolite). The termination on this is complex being made of many tiny points in a tapering structure. Transparent with some color zoning seen when backlit. I believe that St. Lawrence County is the only place where this mineral occurs being found at just 4 locations. However only the Gouverneur Mine ever produced any of this sort of clear terminated crystal and not many of them. This was named when it was thought the crystal form was Hexagonal, however it was later determined to be Monoclinic. The crystal here is in fine condition, has clear striations along the prism faces and a very rich color.
Stannite, Quartz and Arsenopyrite
stock #18AX-15-251-(C288)
Yaogangxian Mine, Yizhang County
Hunan Province, China
7.1 x 4.3 x 4.2 CM (cabinet)
price: $650


From the "golden age" of mineral finds at Yaogangxian, this is a super choice Stannite. Ex Shields Flynn collection, the Stannites are bright brassy, well formed, undamaged and very rich. This specimen was exhibited at Tucson in the TGMS displays in 2005 celebrating the minerals of China. Most pieces from this find had much more Arsenopyrite and or Sphalerite than Stannite, this is almost all Stannite with clear Quartz crystals adding a nice accent. Most will agree that the old Yaogangxian finds were the best ever found. This specimen is well better than typical and now Chinese Stannite is rarely available in such size and attractive quality.
Kyanite with Quartz
stock #19.1-376
Barra do Salinas Mining District, Coronel Murta
Minas Gerais, Brazil
9.7 x 4.1 x2.3 CM (cabinet)
price: $220


Large terminated Kyanite crystals with deep indigo blue color are embedded in and standing on massive Quartz. The smaller crystals are somewhat transparent the larger ones are translucent and show several forms of terminations. The Kyanites from this area of Brazil are some of the most attractive in the world yet are still affordable. This one has color that is more intense than most, in person it is a rich inky color that very few minerals in the world show.
1768 specimens listed
Page   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | ...