1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.58-2.643.13-3.26
1
7.18
2.5 Fracture
Gems, Sixth Edition (2006)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
2.7 Mohs Hardness
2.11 Chemical Composition
SiO2 (with a high level of nickel impurities )
Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)