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249 specimens listed
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Aurichalcite, Hemimorphite
stock #19.1-371
Gorno, Riso Valley, Bergamo Province
Lombardy, Italy
6.6 x 4.2 x 2.8 CM (cabinet)
price: $85


An old Italian specimen, a brightly colored Aurichalcite deposited on top of a light blue Hemimorphite. The coverage on this matrix is quite dense and rich, unlike the more typical isolated micro tufts. Several old labels (Sisi, Sperulunga collections) are included. The backside is a complex mass of Hemimorphite in wormlike structures with a few Aurichalcites in small vugs.
Adamite - Manganoan on yellow/green
stock #19.1-262
Mina Ojuela, Mapimi
Durango, Mexico
2.8 x 2.6 x 1.5 CM (thumbnail)
price: $1150


Killer thumbnail of sharp Manganoan Adamite crystals clustered like a crown on a base of lemon yellow to green Adamites. The Manganoan crystals have light purple and reddish-pink zones with glassy luster, transparent in areas. . Ex collections of Willard Perkins (inventor of the Perky box) and Kay Robertson. In excellent condition, the display side is perfect and competition grade, the backside is contacted where it grew on host rock. With all the fine Adamites to come out of Ojuela it can be hard to find one that is exceptional or stands out. This one is top level with a unique form.
Wulfenite with Mimetite
stock #15.1-861
Rowley Mine, (Reliance Mine), Theba, Painted Rock District
Arizona, United States
1.7 x .9 x .8 CM (thumbnail)
price: $340


Small but incredibly esthetic, a perfect window pane Wulfenite with a single bright red Mimetite ball. From the last work at the Rowley Mine which is now closed for safety reasons, this is a classic association. Very few of these were in such perfect condition. The color, form and condition of this are top quality, despite the small size this has a big visual impact. In person the color and luster are more vibrant than the photos show. This specimen is understandably delicate but is still shippable.
Diopside -single crystal
stock #18-AX-16-548
Orford Nickel Mine, Brompton Lake, Sherbrooke
Quebec, Canada
5 x 1.6 x .8 CM (miniature)
price: $230


Exceptional, perfect, partly gemmy and with glassy luster this is a great Orford Diopside. There were larger crystals found years ago but few were so well defined. This has the desirable honey yellow color and looks better in person. A modern classic with top quality, perfectly undamaged and looks fine from every angle.
Kyanite on Quartz
stock #19.1-370
Barra do Salinas Mining District, Coronel Murta
Minas Gerais, Brazil
7.8 x 3.7 x 2.5 CM (cabinet)
price: $320


Kyanite crystals with Inky blue color with fine luster. Both crystals on the Quartz matrix are doubly terminated, in great condition with no damage. The larger crystal is a cluster of individual blades that start as a single prism and diverge to many separate sheaves all of which are terminated. Translucent and in a few spots transparent, this is a choice specimen of rich blue color. Kyanite is not a rare mineral but good free standing esthetic crystals are quite scarce.
Stephanite -very large crystalline mass
stock #7AE-139
Fresnillo, Pinos, Municipio de Pinas
Zacatecas,
4.4 x 4.2 x 2.1 CM (miniature)
price: $1400


A really large, pure Stephanite specimen that shows complex crystal faces on every side. In exceptional condition, besides being large this has a brilliant bright Silver luster. Stephanite is one of more rare Silver minerals and is soft (2-2.5) brittle and so not usually seen in such fine condition. An older Fresnillo specimen this locality only rarely produced any specimens larger than thumbnails, and for that matter this is a large piece from anyplace. The intergrown sections of crystals are still very sharp with well defined striations and what seems to be many twin planes. A fine addition for a serious Silver suite or Mexican mineral collection.
Vesuvianite -Gem clear
stock #18-AX-16-514
Jeffrey Mine, Asbestos
Quebec, Canada
2.2 x 1.6 x .8 CM (thumbnail)
price: $340


Thumbnail of Gem Vesuvianite that has an unusual side crystal. On this a slender off shoot crystal juts out at an angle. It is not so unusual to see very tiny crystals encrusting the sides of Vesuvianites but this sort of prismatic crystal is very rare. in fine condition as seen, no damage or chipping, a clean prismatic contact is on the back side of the main crystal. The Jeffrey mine at one time produced many good Vesuvianites, but very fine pieces were always rare, and now there are no more of any quality.
Azurite with Malachite - curved faces
stock #18-AX-24-058A
Milpillas Mine, Cuitaca, Municipio de Santa Cruz
Sonora, Mexico
4.6 x 2. x 2.1 CM (miniature)
price: $880


Milpillas Azurite with well defined crystals having top luster and electric blue color. Far more striking in person, these crystals show the curved faces that are distinctive from the last pockets found. All are clustered in a complex array and the specimen displays well from many angles. In exceptional condition, a few bits of Malachite are present but this is nearly pure deep blue Azurite. Thanks to the large finds that were preserved from this mine it is possible to find superb Azurites for a a cost far less than it was 10 years ago which is not at all normal in the mineral world.
249 specimens listed
Page   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | ...