Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.16-3.432.98-3.10
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
{110} Good, {110} Good
[100] Perfect, [110] Good, [011] Distinct
Mohs Hardness
5-66
2
10
👆🏻
Chemical Composition
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references