Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
1.19-1.353.85-3.94
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
Conchoidal, Uneven
Cleavage
None
{010} Good, {100} Distinct
Mohs Hardness
2.5-45-5.5
2
10
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Chemical Composition
C
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)