General Information:
Chemical Formula:
Mn++[(V,As)O4(OH)2]2
Composition:
(Molecular Weight = 439.76 gm)
Manganese 12.49 % Mn
Vanadium 17.38 % V
Arsenic 25.56 % As
Hydrogen 0.92 % H
Oxygen 43.66 % O
Empirical Formula:
Mn2+2(V5+0.75)2(As0.75)2(O4)2(OH2)
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
None
Color:
orange red.
Density:
3.92
Diaphaniety:
Transparent
Hardness:
3-3.5 - Calcite-Copper Penny
Luster:
Vitreous (Glassy)
Streak:
orange
More details...