Tenacity
Brittle
Brittle
Solubility
insoluble in water
-
Durability
-
-
Specific Gravity
5.00-5.206.50-7.00
1
7.18
👆🏻
Fracture
Uneven, Conchoidal, ConchoidalWalter Schumann
Irregular, Conchoidal
Cleavage
Indistinct on {001}; partings on {011} and {111}
On {011}, distinct; on {001}, {013}, indistinct
Mohs Hardness
6-6.53
2
10
👆🏻
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbMoO 4Walter Schumann , Gemstones of the world (2001)