Nobleite

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Nobleite
Nobleite.jpg
General
Category Phylloborates
Formula
(repeating unit)
CaB6O9(OH)2·3H2O
Strunz classification 6.FC.05
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group P21/a

Nobleite is a rare borate mineral with the chemical formula CaB6O9(OH)2·3H2O. It was discovered in 1961, in Death Valley, California, and is named for Levi F. Noble, a USGS geologist, in honor of his contributions to the geology of the Death Valley region.

Nobleite has also been identified at two localities in Chile and Argentina.

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