Marin Mineral
Mixed Minerals
September 17, 2011  ·  14 specimens

AF762 - Prehnite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.1 x 1.0 x 0.8 cm



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Prehnite Prehnite Prehnite

Bright lemon yellow Prehnite crystals in a very well crystalized cluster, appears to be a floater.


AF763 - Tanzanite   $4,500  available

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 3.1 x 1.8 x 0.8 cm



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Tanzanite Tanzanite Tanzanite Tanzanite

Glassy bi-color crystal, blue base with a yellow termination. This crystal has superb luster and unusually uniform shape, retaining an even 8mm thickness all the way from the base to the termination. The yellow zone is facet grade and the blue zone, while having some internal fractures, is still mostly transparent - you can read through most of the crystal. Just a few tiny, trivial nicks otherwise totally undamaged. This is one of, if not the best of these yellow/blue bi-color crystals I have ever seen.

AF764 - Vanadanite on Barite  sold

Mibladen, Morocco
Miniature - 3.7 x 3.2 x 2.5 cm



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Vanadanite on Barite Vanadanite on Barite Vanadanite on Barite

Glassy red Vanadanite crystals to 9mm wide atop Barite crystals. The crystals are undamaged and display well. Sawn base.


AF765 - Epidote on Prehnite  sold

Djouga, Bendougou, Kayes Region, Mali
Miniature - 4.5 x 3 x 2 cm



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Epidote on Prehnite Epidote on Prehnite Epidote on Prehnite

Three spheres of translucent green Prehnite with attached bits of Epidote, including a 7mm double terminated crystal. The Prehnite forms perfect spheres that are uncontacted, largest being 1.9cm in diameter. These Prehnite spheres, at one time common, are reportedly not being found any longer.


AF766 - Cuprian Dolomite on Cuprite  sold

Tsumeb, Namibia
Small Cabinet - 7.3 x 4 x 4 cm



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Cuprian Dolomite on Cuprite Cuprian Dolomite on Cuprite Cuprian Dolomite on Cuprite

Pearlescent white/blue/green cuprian Dolomite crystals atop Cuprite crystals. This specimen has a perfect balance of crystals of the two species showing on front, with the gaps in coverage allowing the red Cuprite crystals to show through in areas providing good color contrast, with an even better green color in person than the photos show. A beautiful and rare Tsumeb specimen.


AF767 - Schorl on Jeremejevite  sold

Ameib Ranch, Arandis, Erongo Region, Namibia
Thumbnail - 2.2 x 0.6 x 0.5 cm



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Schorl on Jeremejevite Schorl on Jeremejevite Schorl on Jeremejevite

Cluster of black Schorl crystals attached to a gemmy blue Jeremejevite crystal. The Jeremejevite is unterminated but is glassy with great blue color and many gem sections.


A783 - Spinel  sold

Luc Yen, Yenbai Prov., Vietnam
Miniature - 5 x 3 x 2.5 cm



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Spinel Spinel Spinel

Pair of deep red, glassy Spinel crystals.  The larger bottom crystal is spinel-twinned. Large spinels of good color, valued at $150.


E119 - Sphalerite with Arsenopyrite  sold

Gidiursko Mine, Madan, Rhodope Mtns., Bulgaria
Miniature - 3.8 x 3.3 x 2.8 cm



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Sphalerite with Arsenopyrite Sphalerite with Arsenopyrite Sphalerite with Arsenopyrite

Well crystallized black Sphalerite with attached Arsenopyrite. Undamaged and sits up nice for display.


NA475 - Amethyst  sold

Las Vigas, Vera Cruz, Mexico
Miniature - 4.5 x 3 x 2.2 cm



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Amethyst Amethyst Amethyst

Unusually shaped cluster with a double terminated crystal forming the base and two attached crystals rising up at angles.


NA476 - Benitoite and Neptunite  sold

Gem Mine, San Benito Co., California
Miniature - 3.8 x 2.8 x 1.8 cm



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Benitoite and Neptunite Benitoite and Neptunite

Benitoite and Neptunite crystals spread across a white Natrolite covered matrix.


NA477 - Neptunite  sold

Gem Mine, San Benito Co., California
Miniature - 4 x 2.8 x 2 cm



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Neptunite Neptunite

Loads of lustrous black Neptunite crystals rising up from a white Natrolite covered matrix. Lots of crystals on this specimen.


NA478 - Benitoite and Neptunite  sold

Gem Mine, San Benito Co., California
Miniature - 4 x 3.5 x 2 cm



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Benitoite and Neptunite Benitoite and Neptunite Benitoite and Neptunite

Benitoite and Neptunite crystals on a white Natrolite covered matrix.The Benitoite have great blue color.


NA479 - Wavellite on Variscite  sold

Willard Mine, Lovelock, Nevada
Small Cabinet - 6 x 4.5 x 3 cm



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Wavellite on Variscite Wavellite on Variscite

Green botryoidal Variscite with yellow spherical clusters of Wavellite. Self collected, this is a piece from the best pocket I found.


NA480 - Wavellite on Variscite  sold

Willard Mine, Lovelock, Nevada
Miniature - 3.4 x 2 x 1.5 cm



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Wavellite on Variscite Wavellite on Variscite Wavellite on Variscite

Green botryoidal Variscite with yellow spherical clusters of Wavellite. Self collected, this is a piece from the best pocket I found.


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