Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.85-6.152.78
1
7.18
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Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
Fair in four directions forming octahedrons
{???} Distinct, {???} Indistinct
Mohs Hardness
3.5-45-6
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)