Tenacity
-
Brittle
Solubility
-
Easily soluble in cold dilute HCl
Durability
-
-
Specific Gravity
3.85-3.944.12
1
7.18
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Fracture
Conchoidal, Uneven
Uneven
Cleavage
{010} Good, {100} Distinct
Good in two directions parallel to the prism faces {110}
Mohs Hardness
5-5.54-4.5
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
CaZn(AsO4)(OH)