Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.353.89-4.18
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
Perfect on {100}, imperfect on {001}
{0001}, {11 2 0} imperfect
Mohs Hardness
2.55.5
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references