Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.14-3.162.34-2.51
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
Perfect on {010} and {110}
None
Mohs Hardness
5-5.5-9999
2
10
👆🏻
Chemical Composition
MgF 2Ulrich Henn and Claudio C.
SiO2, Al2O3, FeO, MgO, CaO, K2O, Na2O