Tenacity
Brittle
-
Solubility
Soluble
-
Durability
-
-
Specific Gravity
4.1-4.33.85-3.94
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
Indistinct on {011}
{010} Good, {100} Distinct
Mohs Hardness
3.5-45-5.5
2
10
👆🏻
Chemical Composition
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)