Tenacity
-
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
2.27-2.333.00-3.25
1
7.18
👆🏻
Fracture
-
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Perfect
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
5.5-64
2
10
👆🏻
Chemical Composition
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
CaF2