Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.356.30-6.39
1
7.18
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Fracture
Conchoidal
Conchoidal
Cleavage
Perfect on {100}, imperfect on {001}
[001] good, [210] distinct
Mohs Hardness
2.53-3.5
2
10
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Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references