Varulite

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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