Tenacity
Brittle
-
Solubility
insoluble in water
Insoluble: HCl
Durability
-
-
Specific Gravity
5.00-5.203.61-3.68
1
7.18
👆🏻
Fracture
Uneven, Conchoidal, ConchoidalWalter Schumann
Conchoidal
Cleavage
Indistinct on {001}; partings on {011} and {111}
[10 1 1] poor
Mohs Hardness
6-6.56-6.5
2
10
👆🏻
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references