Tenacity
-
-
Solubility
-
Insoluble in acids
Durability
-
-
Specific Gravity
3.85-3.944.20-4.30
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Conchoidal
Cleavage
{010} Good, {100} Distinct
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
5-5.56-6.5
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)