Tenacity
-
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
3.0-3.53.00-3.25
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Perfect
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
5-64
2
10
👆🏻
Chemical Composition
Na(CaNa)(Mg,Fe++)5(Si8O22)(OH)2
CaF2