There are 376 minerals currently listed.

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Calcite

ID: 6009
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A beautifully translucent sphere of green calcite that is made up of intergrown flattened rhombs, on a white feldspar matrix. Found these at the Tucson show and thought they were very cool.


Price: $40.00
Location: Medina, Minas Gerais, Brazil
Dimensions: 2.8 x 2.6 x 1.9cm
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Calcite (Ex Greenamyer Coll.)

ID: 6442
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Vary sharp, pastel straw colored prismatic crystal of calcite on a limestone matrix.

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Price: $20.00
Location: Jackson County, Florida
Dimensions: 2.8 x 2.6 x 2.4cm
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Calcite (ex Nelson Coll.)

ID: 3444
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A pair of water clear prisms of calcite on matrix. There’s a tiny nick on one of the terminations. This little guy was found during an excavation near the airport in Skardu, and I don’t think there’ll be any more. A find for the serious calcite collector!


Price: $265.00
Location: Skardu Airport, Skardu, Balistan, Pakistan
Dimensions: 3.5 x 2.5 x 1.8cm
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Calcite and Pyrite on a Thalassinoides Burrow

ID: 6327
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An unusual specimen specimen of clear calcite prisms and sharp pyrite crystals coat and are poised on a fossilized thalassinoide burrow.


Price: $60.00
Location: Conco Mine, Kane County, Illinois
Dimensions: 3.4 x 3 x 2cm
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Calcite on Dolomite

ID: 5991
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Clear and lustrous, intergrown calcite crystals on a reddish brown matrix of dolomite, with minor duftite. Pretty specimen.


Price: $150.00
Location: Tsumeb Mine, Tsumeb, Namibia
Dimensions: 4.3 x 3.6 x 2.7cm
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Calcite on Smithsonite (Ex John Schneider Coll.)

ID: 6375
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An orange to reddish (some look like they are coated or included with black sulfides) doubly sided specimen of smithsonite crystals that are sprinkled with tiny drusy off white calcite crystals.


Price: $750
Location: Tsumeb Mine, Tsumeb, Namibia
Dimensions: 10.5 x 6 x 3.5cm
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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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Calcite with Olivenite, on Dolomite

ID: 6090
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Sharp and gemmy lustrous prisms of pastel yellow calcite on a matrix of light dolomite rhombs that are sprinkled with dark green olivenite spheres. Unusual habit for olivenite.


Price: $400.00
Location: Tsumeb Mine, Tsumeb, Namibia
Dimensions: 4.5 x 4 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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SOLD
Location: Naica, Chihuahua, Mexico
Dimensions: 7.5 x 4.8 x 4.2cm
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Cassiterite on Arsenopyrite (ex Nelson Coll.)

ID: 3858
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A crown of translucent, brownish black lustrous crystals of cassiterite sit on the tip of a silvery, brilliant group of arsenopyrites with minor muscovite. Another cassiterite group and some siderites sit at the rear of the piece. Super display piece from this classic locale!


Price: $450.00
Location: Panasqueira, Portugal
Dimensions: 6.5 x 5.5 x 3.7cm
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There are 376 minerals currently listed.

Click on the mineral photo to see additional views of the specimen.