Tenacity
-
Slightly sectile
Solubility
Insoluble in acids
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Durability
-
-
Specific Gravity
4.20-4.302
1
7.18
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Fracture
Uneven, Conchoidal
Uneven
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
Prismatic {10 1 0}, perfect
Mohs Hardness
6-6.52-2.5
2
10
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Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references