Tenacity
-
-
Solubility
-
Partially soluble in water
Durability
-
-
Specific Gravity
3.85-3.941.77
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
-
Cleavage
{010} Good, {100} Distinct
Perfect on {10 1 0}
Mohs Hardness
5-5.52-2.5
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)