Kernite (Ref: BB24)
U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
202mm x 20mm x 7mm
minID: CTE-EAV
A lustrous, transparent crystal of Kernite, nearly 8 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.From: Bob Griffis Minerals
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