Tenacity
Brittle
Brittle
Solubility
Soluble
-
Durability
-
-
Specific Gravity
1.9933.87-4.14
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Conchoidal
Cleavage
Perfect on [100], [010], [001]
Poor on {120}, in traces on {001}
Mohs Hardness
2.55.5-6
2
10
👆🏻
Chemical Composition
KCl
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references