1 Physical Properties
1.1 Tenacity
1.2 Solubility
slightly water soluble and in hot hydrochloric acid
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.00-3.252.32-2.38
1
7.18
2.5 Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
2.6 Cleavage
Octahedral, perfect on {111}, parting on {011}
Not Available
2.7 Mohs Hardness
2.11 Chemical Composition
CaF2
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)