Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.85-6.154.00-4.62
1
7.18
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Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
Fair in four directions forming octahedrons
Indistinct parting on [111]
Mohs Hardness
3.5-47.5-8
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)