Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.256.30-6.39
1
7.18
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Fracture
-
Conchoidal
Cleavage
Imperfect in one direction
[001] good, [210] distinct
Mohs Hardness
5-5.53-3.5
2
10
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Chemical Composition
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references