1 Physical Properties
1.2 Tenacity
1.5 Solubility
slightly water soluble and in hot hydrochloric acid
Not Available
1.8 Durability
Not Available
Not Available
1.10 Specific Gravity
3.00-3.252.55-2.70
1
7.18
1.16 Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Not Available
1.17 Cleavage
Octahedral, perfect on {111}, parting on {011}
Not Available
1.18 Mohs Hardness
1.19 Chemical Composition
CaF2
SiO 2Arthur Thomas , Gemstones (2009)