Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.82-3.972.90-3.00
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal, Uneven
Cleavage
Perfect on [001] and [011]
None
Mohs Hardness
5.5-65-5.5
2
10
👆🏻
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references