Nobleite

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Nobleite is a rare borate mineral with the chemical formula CaB6O9(OH)2 · 3(H2O) . 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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