Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.50-3.60
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
-
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
Mohs Hardness
-99996
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, CaO, MgO, FeO
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.