Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.98-3.103.07-3.13
1
7.18
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Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Conchoidal, Uneven
Cleavage
[100] Perfect, [110] Good, [011] Distinct
{100} Perfect, {010} Distinct, {102} Distinct
Mohs Hardness
63-3.5
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
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references