Tenacity
-
-
Solubility
Insoluble in acids
insoluble
Durability
-
-
Specific Gravity
4.20-4.302.36
1
7.18
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Fracture
Uneven, Conchoidal
Uneven, Subconchoidal, Fibrous
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
[110] perfect, [101] good, [010] distinct
Mohs Hardness
6-6.53.5-4
2
10
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Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references