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Colemanite
Colemanite Colemanite Colemanite
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Colemanite (Ref: CMC1)

Corkscrew Mine, Furnace Creek District, near Ryan, Death Valley, Inyo County, California, USA
145mm x 111mm x 77mm
minID: Y8G-D58
This two-sided Colemanite specimen is from the old Corkscrew Mine located inside Death Valley National Monument. It is comprised of intergrown, glassy, colorless, spheroidal aggregates of Colemanite crystals, some with minor clay inclusions. Single crystals to 4 mm are also present. Trivial damage is present along the two of the margins where it was removed, otherwise in excellent condition. This was found in the 1980s, and collecting here is now forbidden. Fluorescent yellow in both SW and LW Ultraviolet light.

From: Bob Griffis Minerals
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See Also

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Fluorite
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Andradite & Grossular (garnet group)
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Silver
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Silver
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$100
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Andradite & Grossular (garnet group)
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Andradite & Grossular (garnet group)
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Malachite ps. Chalcopyrite
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Smithsonite
Blanchard Mine, Hansonburg District, Socorro County, New Mexico, USA
$75
60mm x 39mm x 19mm
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Smithsonite
Blanchard Mine, Hansonburg District, Socorro County, New Mexico, USA
$75
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From: Enchanted Minerals
Andradite & Grossular (garnet group)
San Pedro Mine, New Placers District, Santa Fe County, New Mexico, USA
$125
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From: Enchanted Minerals
Andradite & Grossular (garnet group)
San Pedro Mine, New Placers District, Santa Fe County, New Mexico, USA
$125
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San Pedro Mine, New Placers District, Santa Fe County, New Mexico, USA
$125
46mm x 30mm x 22mm
From: Enchanted Minerals
* price is an approximate conversion and may not be accurate.

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