Tag Archives: North America

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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.


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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Malachite (ex Otto Pfordte Coll.)

ID: 6405
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Deep green botryoidal formations of malachite showing radiating patterns on the edges. Great Bisbee old timer.


Original Price: $1000.00
Sale Price: $750.00
Location: Copper Queen Mine, Bisbee, Cochise County, Arizona
Dimensions: 8 x 7 x 4cm
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Copper (ex Otto Pfordte Coll.)

ID: 6396
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Sharp crystals of copper with a great patina forming branching formations and elongated (spinel?) crystals with some matrix attached. Choice old timer from the early 1900’s or late 1800’s.


Price: $3200.00
Location: Calumet Mine, Houghton County, Michigan
Dimensions: 17.5 x 6 x 5cm
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Creedite (Ex John Barlow Coll.)

ID: 6372
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A choice specimen of lustrous medium purple sharp crystals of creedite forming beautiful sprays. Ex John Barlow piece with his label.


Price: $600.00
Location: Santa Eulalia, Chihuahua, Mexico
Dimensions: 5.4 x 3.2 x 2.1cm
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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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Grossular

ID: 6325
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A wonderful miniature of intergrown, very lustrous and gemmy light orange crystals of grossular completely coating a shard of matrix. A sparkler from this closed locality.


Price: $1500.00
Location: Jeffrey Mine, Asbestos, Quebec, Canada
Dimensions: 3.8 x 3.5 x 2.1cm
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There are 65 news updates.