Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.853.45-3.55
1
7.18
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Fracture
Conchoidal, Uneven
Uneven
Cleavage
Distinct on {10 1 1}, imperfect on {01 1 2}
{100} Perfect, {010} Perfect
Mohs Hardness
2.5-35-6
2
10
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Chemical Composition
Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mg) 2Si 2O 6Ulrich Henn and Claudio C.