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Kernite

U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA

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Large Cabinet

88 x 14 x 23 mm overall

A lustrous, transparent crystal of Kernite measuring nearly 3.5 inches long, from the type locality. Kernite is a relatively rare hydrated Na-borate hydroxide with perfect cleavage and a brittle fracture. There are some small amount of white surface alteration (via dehydration) to Tincalconite, but limited by a coating of plastic spray. The crystal cross-section is intact and the ends are matrix influenced, as typical. A nice example from this locality, all but closed to collecting.

Specimen #  BB23

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