General Information:
Chemical Formula:
NaCaMn(Mn,Fe++,Fe+++)2(PO4)3
Composition:
(Molecular Weight = 513.48 gm)
Sodium 4.48 % Na
Calcium 7.81 % Ca
Manganese 24.07 % Mn
Iron 8.16 % Fe
Phosphorus 18.10 % P
Oxygen 37.39 % O
Empirical Formula:
NaCaMn2+2.25Fe2+0.5Fe3+0.25(PO4)3
IMA Status:
Approved IMA 1976
Locality:
Verutrask pegmatite, Boliden mine, Skelleftea, Vasterbottea, Sweden.
Name Origin:
Named for the locality.
Physical Properties:
Cleavage:
[100] Good, [010] Distinct
Color:
yellow green or olive green.
Density:
3.581
Diaphaniety:
Translucent
Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., ,
Hardness:
5 - Apatite
Luster:
Vitreous (Glassy)
Streak:
greenish white
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