Tenacity
Brittle
-
Solubility
slightly water soluble and in hot hydrochloric acid
-
Durability
-
-
Specific Gravity
3.00-3.253.76-3.77
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann
-
Cleavage
Octahedral, perfect on {111}, parting on {011}
{110} Perfect, {110} Perfect
Mohs Hardness
45-6
2
10
👆🏻
Chemical Composition
CaF2
(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.