Tenacity
Brittle
-
Solubility
-
insoluble
Durability
-
-
Specific Gravity
4.00-4.656.46-6.57
1
7.18
👆🏻
Fracture
Uneven, Sub-Conchoidal
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Perfect on [1011]
Good [110] and [021]
Mohs Hardness
5-5.53-3.5
2
10
👆🏻
Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references