Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.70-3.902.90-2.98
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Perfect on {011}, fair on {100}, poor on {110}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Mohs Hardness
3.5-43.5
2
10
👆🏻
Chemical Composition
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references