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
3.00-3.252.74-2.90
1
7.18
1.5 Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Uneven, Gemstones (2009), Splintery
1.6 Cleavage
Octahedral, perfect on {111}, parting on {011}
Perfect on {100} and {001}
1.7 Mohs Hardness
1.8 Chemical Composition
CaF2
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.