Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.85-6.153.1-3.2
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
Fair in four directions forming octahedrons
Vitreous, pearly on cleavage
Mohs Hardness
3.5-43-4
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references