Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.34-2.513.29-3.33
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
None
Perfect
Mohs Hardness
-99995
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, FeO, MgO, CaO, K2O, Na2O
(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)