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Colemanite Crystalline Thumbnail Mineral Specimen, mined in California

FenderMinerals

Regular price $8.00

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Colemanite Thumbnail mineral specimen. A borate mineral that forms by alteration of borax and ulexite.

Dimensions (millimeters): 25 x 20 x 20

Dimensions (inches): 1 x .75 x .75

Origins: from Corkscrew Mine, Death Valley, Inyo County, California

Housed in small acrylic museum box.

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Save Money With Combined Shipping. The highest combined rate for the USA is $8.50, select “priority with insurance”.