Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.70-3.90-9999
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
Perfect on {011}, fair on {100}, poor on {110}
None
Mohs Hardness
3.5-43-4
2
10
👆🏻
Chemical Composition
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite