Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.87-4.143.83-3.89
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
Poor on {120}, in traces on {001}
Perfect on {01 1 1}
Mohs Hardness
5.5-63.5-4.5
2
10
👆🏻
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references