2 Physical Properties
2.2 Tenacity
2.4 Solubility
slightly water soluble and in hot hydrochloric acid
Not Available
2.7 Durability
Not Available
Not Available
2.10 Specific Gravity
3.00-3.253.05-3.21
1
7.18
2.17 Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
2.18 Cleavage
Octahedral, perfect on {111}, parting on {011}
Good on {110}, poor on {100}
2.19 Mohs Hardness
2.20 Chemical Composition
CaF2
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references