Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.103.70-3.90
1
7.18
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Fracture
Uneven
Conchoidal
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
Perfect on {011}, fair on {100}, poor on {110}
Mohs Hardness
3.5-43.5-4
2
10
👆🏻
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references