Tenacity
Brittle
-
Solubility
-
Insoluble in acids
Durability
-
-
Specific Gravity
5.85-6.154.20-4.30
1
7.18
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Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
Fair in four directions forming octahedrons
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
3.5-46-6.5
2
10
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Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)