Tenacity
Brittle
Brittle
Solubility
slightly water soluble and in hot hydrochloric acid
-
Durability
-
-
Specific Gravity
3.00-3.252.74-2.90
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann
Uneven, Splintery
Cleavage
Octahedral, perfect on {111}, parting on {011}
Perfect on {100} and {001}
Mohs Hardness
44.5-5
2
10
👆🏻
Chemical Composition
CaF2
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.