1 Physical Properties
1.2 Tenacity
Not Available
Not Available
1.5 Solubility
Not Available
Not Available
1.8 Durability
Not Available
Not Available
1.9 Specific Gravity
2.54-2.613.13-3.26
1
7.18
1.15 Fracture
Gems, Uneven
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.16 Cleavage
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
Not Available
1.17 Mohs Hardness
1.18 Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)