1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Gelatinises in acids
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
0.1 Fracture
Uneven, Subconchoidal, Conchoidal, Brittle
Uneven, Conchoidal, Brittle
1.2 Cleavage
Poor on [111].
Distinct on {110}
1.4 Mohs Hardness
1.15 Chemical Composition
Cu5FeS4
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2