Tenacity
Brittle
Sectile
Solubility
slightly water soluble and in hot hydrochloric acid
-
Durability
-
-
Specific Gravity
3.00-3.253.07
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann
-
Cleavage
Octahedral, perfect on {111}, parting on {011}
Perfect on {010}, indistinct on {100} and {102}
Mohs Hardness
42
2
10
👆🏻
Chemical Composition
CaF2
Ni3(AsO4)2•8(H2O)