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
2.50-2.803.00-3.25
1
7.18
1.5 Fracture
Not Available
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
1.6 Cleavage
Not Available
Octahedral, perfect on {111}, parting on {011}
1.7 Mohs Hardness
1.8 Chemical Composition
Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)
CaF2