Tenacity
-
Brittle
Solubility
insoluble in common solvents
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
2.653.00-3.25
1
7.18
👆🏻
Fracture
Conchoidal, ConchoidalWalter Schumann
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Indiscernible
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
74
2
10
👆🏻
Chemical Composition
SiO2
CaF2