Tenacity
Brittle
-
Solubility
Soluble
-
Durability
-
-
Specific Gravity
4.1-4.33.16-3.23
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven, Conchoidal to uneven
Cleavage
Indistinct on {011}
[0001] indistinct, [1010] indistinct
Mohs Hardness
3.5-45
2
10
👆🏻
Chemical Composition
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references