Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.85-3.943.05-3.08
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Subconchoidal, Uneven, Conchoidal
Cleavage
{010} Good, {100} Distinct
Poor on {100}
Mohs Hardness
5-5.55
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)