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Boromuscovite

Type Locality
Little Three Mine (Little 3 mine), Ramona, Ramona District, San Diego Co., California, USA
Mineral Data
KAl2(BSi3O10)(OH)2
Strunz: 
9.EC.15
Physical Properties
Colour: 
White
Streak: 
White
Hardness: 
2.5 - 3.0