Tenacity
Brittle
Brittle
Solubility
slightly water soluble and in hot hydrochloric acid
-
Durability
-
-
Specific Gravity
3.00-3.255.06-5.08
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann
Uneven, Subconchoidal, Conchoidal
Cleavage
Octahedral, perfect on {111}, parting on {011}
Poor on [111].
Mohs Hardness
43-3.25
2
10
👆🏻
Chemical Composition
CaF2
Cu5FeS4