Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.00-4.653.70-3.90
1
7.18
👆🏻
Fracture
Uneven, Sub-Conchoidal
Conchoidal
Cleavage
Perfect on [1011]
Perfect on {011}, fair on {100}, poor on {110}
Mohs Hardness
5-5.53.5-4
2
10
👆🏻
Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references