Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.52
1
7.18
👆🏻
Fracture
-
-
Cleavage
-
{100} Perfect, {001} Perfect
Mohs Hardness
-99995-5.5
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, CaO, MgO, FeO
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)