Tenacity
Brittle
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
2.72-2.754.3-5
1
7.18
👆🏻
Fracture
Uneven
Irregular/uneven
Cleavage
Perfect on [001], good on [010], imperfect on [110]
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
Mohs Hardness
6-6.53-3.5
2
10
👆🏻
Chemical Composition
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
BaSO4