1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
slightly water soluble and in hot hydrochloric acid
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.71-2.723.00-3.25
1
7.18
1.5 Fracture
Handbook of mineralogy (2001), Difficult, Fibrous
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
1.6 Cleavage
{???} Good
Octahedral, perfect on {111}, parting on {011}
1.7 Mohs Hardness
1.8 Chemical Composition
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
CaF2