Tenacity
-
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
3.63-3.93.00-3.25
1
7.18
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Fracture
Conchoidal, Uneven
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Indistinct
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
7.5-84
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
CaF2