1 Physical Properties
1.3 Tenacity
1.5 Solubility
slightly water soluble and in hot hydrochloric acid
Not Available
1.7 Durability
Not Available
Not Available
1.10 Specific Gravity
3.00-3.252.90-3.00
1
7.18
3.6 Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
3.8 Cleavage
Octahedral, perfect on {111}, parting on {011}
None
3.10 Mohs Hardness
3.18 Chemical Composition
CaF2
CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references