Tenacity
Brittle
Brittle
Solubility
-
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
3,1
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
74
2
10
👆🏻
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
CaF2