Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.85-3.946.5-7.1
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Conchoidal
Cleavage
{010} Good, {100} Distinct
Imperfect- [10 1 1]
Mohs Hardness
5-5.53.5-4
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)