Tenacity
-
-
Solubility
-
Soluble
Durability
-
-
Specific Gravity
3.85-3.942.30-2.90
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
{010} Good, {100} Distinct
Good to perfect_usually N/A
Mohs Hardness
5-5.55-6
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
CuAl6(PO4)4(OH)8 • 4H2O