Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.85-6.154.95-5.0
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Fair in four directions forming octahedrons
Imperfect to indistinct on {10 1 0}, parting on {0001}
Mohs Hardness
3.5-44-5
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references