General Information:
Chemical Formula:NaCaMn(Mn,Fe++,Fe+++)2(PO4)3
Composition:(Molecular Weight = 513.48 gm)Sodium 4.48 %
NaCalcium 7.81 %
CaManganese 24.07 %
MnIron 8.16 %
FePhosphorus 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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