Tenacity
-
-
Solubility
Insoluble in acids
-
Durability
-
-
Specific Gravity
4.20-4.302.32-2.38
1
7.18
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Fracture
Uneven, Conchoidal
ConchoidalWalter Schumann
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
None
Mohs Hardness
6-6.55.5
2
10
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Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)