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Tunellite
Type Locality
U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; U.S. Borax and Chemical Corp.; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
Mineral Data
SrB
6
O
9
(OH)
2
·3H
2
O
Strunz:
6.FC.05
Physical Properties
Hardness:
2.5
Tenacity:
flexible
