Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.05-3.08
1
7.18
👆🏻
Fracture
Sub-Conchoidal, Splintery
Subconchoidal, Uneven, Conchoidal
Cleavage
{201} Imperfect, {100} Poor, {001} Poor
Poor on {100}
Mohs Hardness
3.5-45
2
10
👆🏻
Chemical Composition
FeAsO4·2H2O
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)