Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.70-3.903.16-3.23
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven, Conchoidal to uneven
Cleavage
Perfect on {011}, fair on {100}, poor on {110}
[0001] indistinct, [1010] indistinct
Mohs Hardness
3.5-45
2
10
👆🏻
Chemical Composition
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references