Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.87-4.145.50-5.90
1
7.18
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Fracture
Subconchoidal, Conchoidal
Conchoidal
Cleavage
Poor on {120}, in traces on {001}
On {10 1 0}, perfect; parting on {000 1 }
Mohs Hardness
5.5-64
2
10
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Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)