General Information:
Chemical Formula:
(Mn,Fe++)2(PO4)(OH)
Composition:
(Molecular Weight = 222.31 gm)
Manganese 37.07 % Mn
Iron 12.56 % Fe
Phosphorus 13.93 % P
Hydrogen 0.45 % H
Oxygen 35.98 % O
Empirical Formula:
Mn2+1.5Fe2+0.5(PO4)(OH)
Physical Properties:
Cleavage:
[???] Perfect
Color:
greenish, yellow, yellow brown, pink, or reddish brown.
Density:
3.7
Diaphaniety:
Transparent to Translucent
Habits:
Fibrous - Crystals made up of fibers., Columnar - Forms columns,
Hardness:
4.5-5
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Greasy
Streak:
white
More details...