Tenacity
-
-
Solubility
-
insoluble
Durability
-
-
Specific Gravity
2.98-3.102.36
1
7.18
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Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Uneven, Subconchoidal, Fibrous
Cleavage
[100] Perfect, [110] Good, [011] Distinct
[110] perfect, [101] good, [010] distinct
Mohs Hardness
63.5-4
2
10
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Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references