Tenacity
Brittle
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
3.69-3.813.00-3.25
1
7.18
👆🏻
Fracture
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
8.54
2
10
👆🏻
Chemical Composition
BeAl 2 O 4
CaF2