Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.87-4.143.25-3.50
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal, Fibrous
Cleavage
Poor on {120}, in traces on {001}
{001} perfect and {100} imperfect
Mohs Hardness
5.5-66-7
2
10
👆🏻
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references