1 Physical Properties
1.1 Tenacity
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Not Available
1.3 Solubility
Not Available
Not Available
2.2 Durability
Not Available
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2.3 Specific Gravity
2.7 Fracture
Not Available
Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.8 Cleavage
{100} and {010} perfect
[100] Perfect, [110] Good, [011] Distinct
2.9 Mohs Hardness
2.10 Chemical Composition
LiNa(Zr,Ti,Hf)Si 6O 15Ulrich Henn and Claudio C.
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references