Tenacity
-
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
2.32-2.383.00-3.25
1
7.18
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Fracture
ConchoidalWalter Schumann
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
None
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
5.54
2
10
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Chemical Composition
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
CaF2