Tenacity
-
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
3.60-3.613.00-3.25
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Imperfect/fair/absent
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
8-8.54
2
10
👆🏻
Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
CaF2