Tenacity
Brittle
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
2.74-2.903.00-3.25
1
7.18
👆🏻
Fracture
Uneven, Splintery
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Perfect on {100} and {001}
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
4.5-54
2
10
👆🏻
Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
CaF2