Tenacity
-
-
Solubility
insoluble in common solvents
-
Durability
-
-
Specific Gravity
2.652.34-2.51
1
7.18
👆🏻
Fracture
Conchoidal, ConchoidalWalter Schumann
-
Cleavage
Indiscernible
None
Mohs Hardness
7-9999
2
10
👆🏻
Chemical Composition
SiO2
SiO2, Al2O3, FeO, MgO, CaO, K2O, Na2O