Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.27-2.332.56-2.62
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
Perfect
From the Greek for oblique and fracture, descriptive of the cleavage
Mohs Hardness
5.5-66-6.5
2
10
👆🏻
Chemical Composition
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)