Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.87-4.144.12-4.18
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal
Cleavage
Poor on {120}, in traces on {001}
{???} Distinct
Mohs Hardness
5.5-67-7.5
2
10
👆🏻
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)