Tenacity
Brittle
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
2.72-2.751.993
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
Perfect on [001], good on [010], imperfect on [110]
Perfect on [100], [010], [001]
Mohs Hardness
6-6.52.5
2
10
👆🏻
Chemical Composition
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
KCl