1 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.3 Solubility
Not Available
Not Available
2.5 Durability
Not Available
Not Available
2.6 Specific Gravity
Not Available2.98-3.10
1
7.18
2.7 Fracture
Uneven
Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.8 Cleavage
Not Available
[100] Perfect, [110] Good, [011] Distinct
2.9 Mohs Hardness
2.15 Chemical Composition
Not Available
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references