Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.06-5.083.95-4.10
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Conchoidal
Uneven
Cleavage
Poor on [111].
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
3-3.253.5-4
2
10
👆🏻
Chemical Composition
Cu5FeS4
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references