General Information:
Chemical Formula:Mn++2(AsO4)(OH)
Composition:(Molecular Weight = 265.80 gm)Manganese 41.34 %
MnArsenic 28.19 %
AsHydrogen 0.38 %
H Oxygen 30.10 %
O Empirical Formula: Mn2+2(AsO4)(OH)
Physical Properties: Cleavage:[100] Distinct
Color:yellow, dark red, or reddish yellow.
Density:4.08 - 4.18, Average = 4.13
Hardness:4-5 - Fluorite-Apatite
Luster:Greasy (Oily)
Streak:yellow
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