Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.822.54-2.61
1
7.18
👆🏻
Fracture
-
-
Cleavage
Perfect in one direction, indistinct in one direction
Perfect
Mohs Hardness
66
2
10
👆🏻
Chemical Composition
K2Na(Ca,Mn)2Ti[O|Si7O18(OH)]
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)