Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
5.85-6.153.87-4.14
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Conchoidal
Cleavage
Fair in four directions forming octahedrons
Poor on {120}, in traces on {001}
Mohs Hardness
3.5-45.5-6
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references