Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.74-2.764.32-4.48
1
7.18
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Fracture
Uneven
Uneven, Subconchoidal, Conchoidal
Cleavage
{010} Perfect, {001} Distinct
{101}, good; {010}, poor
Mohs Hardness
3.5-43.5
2
10
👆🏻
Chemical Composition
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)