Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.353.23-3.26
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Perfect on {100}, imperfect on {001}
Perfect on {010} imperfect on {100}
Mohs Hardness
2.56.5-7
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)