Tenacity
Brittle
-
Solubility
-
insoluble
Durability
-
-
Specific Gravity
5.50-5.906.46-6.57
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
On {10 1 0}, perfect; parting on {000 1 }
Good [110] and [021]
Mohs Hardness
43-3.5
2
10
👆🏻
Chemical Composition
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references