Tenacity
-
-
Solubility
Insoluble in acids
-
Durability
-
-
Specific Gravity
4.20-4.303.29-3.33
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
Perfect
Mohs Hardness
6-6.55
2
10
👆🏻
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
(Ca,Ce) 4 Na(Na,Ca) 2 Ti(Si 2 O 7 ) 2 F 2 (O,F) 2 Michael O’Donoghue, Gems, Sixth Edition (2006)