Tag Archives: North America

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Celestite (Ex Greenamyer Coll.)

ID: 6428
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Clear to white, very sharp crystals of celestite on matrix. Very uncommon to find a good specimen from here. Acquired from Jean Hamel over 50 years ago.

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Location: 20 Mule Team Canyon, Death Valley, Inyo County, California
Dimensions: 5.8 x 5 x 2cm
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Barite, Fluorite on Sphalerite (Ex Koster Coll.)

ID: 6427
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Off-white bladed crystals of barite sit on a crystallized sphalerite matrix. A medium purple fluorite on one edge. Mined in Dec. 1993 and acq. from Ross Lillie in 1994.

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Price: $100.00
Location: Rosicalre Level, Minerva Mine No. 1, Cave in Rock Dist., Hardin Co., Illinois
Dimensions: 9.8 x 7 x 3cm
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Calcite with Quartz, Fluorite, Sphalerite (Ex Koster Coll.)

ID: 6426
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A pearly white sharp rhombohedron of calcite is sprinkled with clear fluorite crystals and sits on a matrix of quartz and sphalerite. Older specimen acq. in 1990

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Location: Naica, Chihuahua, Mexico
Dimensions: 7.5 x 4.8 x 4.2cm
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Rhodochrosite Stalactites (Ex Koster Coll.)

ID: 6425
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Medium reddish pink, lustrous rhodochrosite rhombs forming stalactites lining a vug.

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Price: $150.00
Location: Santa Eulalia, Chihuahua, Mexico
Dimensions: 7 x 6.5 x 3cm
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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 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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Calcite with Fluorite, Rhodochrosite, Quartz (ex S. Koster Coll.)

ID: 6414
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Very sharp, straw colored prisms of calcite associated with bluish fluorite cubes, minor rhodochrosite and thin needle-like quartz crystals.


Price: $200.00
Location: Rainbow Pocket, Tetrahedrite Stope, Sweet Home Mine, Alma, Colorado
Dimensions: 10.5 x 6 x 3.8cm
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Grossular on Vesuvianite (ex S. Koster Coll.)

ID: 6413
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A reddish complete dodecahedron of grossular sits on an olive green partial vesuvianite crystal, with another smaller grossular on one side. Wonderful crystal with very minor contact and terrific aethetics. Acquired from Beau Gordon in 1994.


Price: $1200.00
Location: Sierra de la Cruz, Municipio de Sierra Mojada, Coahuila, Mexico
Dimensions: 7 x 4.9 x 3.5cm
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Fluorite with Barite Inclusions (ex S. Koster Coll.)

ID: 6412
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Colorful (mostly yellow and reddish purple) cubes of fluorite with great zoning are included with sphere of white barite, all on a massive barite matrix.


Price: $280.00
Location: Minerva Mine No. 1, Cave in Rock, Hardin County, Illinois
Dimensions: 9.5 x 6 x 3cm
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There are 54 news updates.