Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
3.70-3.953.30-3.50
1
7.18
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Fracture
-
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
1,1 basal.
Perfect on {110}, poor on {101}, {001} rare
Mohs Hardness
3.5-45
2
10
👆🏻
Chemical Composition
(Cu) 3(OH) 2(CO 3) 2 + Cu 2(CO 3)(OH) 2Gemdat.org , Management Team (2012)
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references