Tenacity
Brittle
-
Solubility
slightly water soluble and in hot hydrochloric acid
-
Durability
-
-
Specific Gravity
3.00-3.252.6-3.3
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann
Lamellar
Cleavage
Octahedral, perfect on {111}, parting on {011}
Perfect 001
Mohs Hardness
42-2.5
2
10
👆🏻
Chemical Composition
CaF2
(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6