Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.87-4.143.19-3.23
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal
Cleavage
Poor on {120}, in traces on {001}
{110} good
Mohs Hardness
5.5-65-6
2
10
👆🏻
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)