Tenacity
-
Brittle
Solubility
Insoluble in acids
insoluble in water
Durability
-
-
Specific Gravity
4.20-4.305.00-5.20
1
7.18
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Fracture
Uneven, Conchoidal
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
6-6.56-6.5
2
10
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Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references