General Information:
Chemical Formula:
Mn+++PO4
Composition:
(Molecular Weight = 149.91 gm)
Manganese 36.65 % Mn
Phosphorus 20.66 % P
Oxygen 42.69 % O
Empirical Formula:
Mn3+(PO4)
Name Origin:
From the Latin purpureus - "purple red."
Physical Properties:
Cleavage:
[100] Perfect, [001] Perfect
Color:
brownish black, violet, dark pink, dark red, or reddish purple.
Density:
3.4
Diaphaniety:
Subtranslucent to Opaque
Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., ,
Hardness:
4-5 - Fluorite-Apatite
Luminescence:
Non-fluorescent.
Luster:
Earthy (Dull)
Streak:
red
More details...