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Tinzenite

Type Locality
Parsettens Alp, Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden), Switzerland
Mineral Data
(Ca,Mn2+)2Mn2+Al2BSi4O15(OH)
Strunz: 
9.BD.20
Physical Properties
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
6.5 - 7.0
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