Tenacity
Brittle
Brittle
Solubility
slightly water soluble and in hot hydrochloric acid
-
Durability
-
-
Specific Gravity
3.00-3.252.00-2.45
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann
Sub-Conchoidal, Conchoidal
Cleavage
Octahedral, perfect on {111}, parting on {011}
none
Mohs Hardness
42-4
2
10
👆🏻
Chemical Composition
CaF2
Cu2H2Si2O5(OH)4