Tag Archives: Miniature

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Fluorite (ex Koster Coll.)

ID: 6423
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A very gemmy, medium purple specimen of fluorite composed of cubes with beveled edges. Some pyrite crystals on the rear. Older Naica acquired in 1988.

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Price: $260.00
Location: Naica, Chihuahua, Mexico
Dimensions: 5 x 4 x 3.5cm
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Fluorite (ex S. Koster Coll.)

ID: 6420
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Water clear, very sharp and lustrous cubes of fluorite on a grey matrix.


Price: $200.00
Location: Emilio Mine, Caravia, Asturias, Spain
Dimensions: 6.5 x 6.5 x 3.3cm
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Quartz “Gwindle” with Chlorite (ex S. Koster Coll.)

ID: 6418
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A near floater specimen of gwindle (twisted) quartz with a coating of chlorite on the surface of the crystals, giving it that medium green color. There are several clear faces on the crystals that show  the interior is water clear.


Price: $180.00
Location: Grischun, Switzerland
Dimensions: 4.7 x 4.2 x 2.5cm
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Fluorite with Calcite and Quartz (ex S. Koster Coll.)

ID: 6417
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Deep purple bi-pyramidal octahedrons of fluorite on a matrix with calcite, quartz and minor pyrite. This old timer (with a sawn back)was acquired in 1982,and has the much rarer purple color. I also hear that Naica is now closed and completely flodded.


Price: $200.00
Location: Naica, Chihuahua, Mexico
Dimensions: 5 x 4.5 x 2.7cm
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Fluorite “Spinel Twin” (ex S. Koster Coll.)

ID: 6416
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A medium green spinel twin crystal of fluorite with both smooth and frosted faces, and a small streak of purple running down one side. Bizarre crystal.


Price: $350.00
Location: Naica, Chihuahua, Mexico
Dimensions: 6.5 x 4 x 3cm
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Quartz Var. “Fenster” (ex S. Koster Coll.)

ID: 6415
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A wonderful example of a doubly terminated Swiss “Fensterquarz”, meaning skeletal quartz crystals with rhombohedral windows on the faces. This one is in perfect condition.


Price: $200.00
Location: Illiez Valley, Wallius, Switzerland
Dimensions: 5.4 x 4 x 2cm
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Chalcocite (Ex Chris Amo and Stephen Phillips Coll.)

ID: 6394
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Highly lustrous, silvery plates of chalcocite sit with intergrown blocky crystals, on a matrix of sulfides and hematite stained quartz crystals. Choice miniature!


Price: $1600.00
Location: Tsumeb Mine, Tsumeb, Namibia
Dimensions: 6.3 x 4.1 x 3.5cm
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Smithsonite Var. Cobaltoan

ID: 6392
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A mound of deep hot pink crystals of smithsonite sit on a dark sulfide matrix. Top notch color and luster.


Price: $400.00
Location: Tsumeb Mine, Tsumeb, Namibia
Dimensions: 4 x 3 x 2.5cm
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Dolomite After Tarnowitzite with Cuprite (Ex Claude Yoder Coll.)

ID: 6389
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Pearly dolomite crystals have completely replaced tarnowitzite crystals (the plumbian variety of aragonite) and are dotted by hexagonal cuprite crystals and tiny yellow mimetites, (most of them at the base of the specimen).


Price: $400.00
Location: Tsumeb Mine, Tsumeb, Namibia
Dimensions: 6.5 x 4.3 x 2.7cm
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Wulfenite on Tennantite (Ex John Schneider Coll.)

ID: 6385
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Dark, striated lustrous crystals of wulfenite on a matrix of black tennantite.


Price: $300.00
Location: Tsumeb Mine, Tsumeb, Namibia
Dimensions: 5 x 3.6 x 2.4cm
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There are 194 news updates.