Tenacity
-
Brittle
Solubility
insoluble
-
Durability
-
-
Specific Gravity
6.46-6.574.00-4.65
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Uneven, Sub-Conchoidal
Cleavage
Good [110] and [021]
Perfect on [1011]
Mohs Hardness
3-3.55-5.5
2
10
👆🏻
Chemical Composition
PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references