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Formula:NaFe2+Al5(PO4)4(OH)6.2H2O
Hydrated phosphate containing hydroxyl, dufrénite group, forms a series with
matioliite
Crystal System: Monoclinic
Specific gravity: 3.00 calculated
Hardness: 5
Streak: Weakly bluish
Colour: Blue, colourless
Environments
At its type locality, the Buranga pegmatite, Gatumba, Ngororero District, Western Province, Rwanda, burangaite occurs in a
granite pegmatite associated with
wardite, trolleite,
scorzalite, quartz,
bjarebyite, bertossaite,
samuelsonite, gatumbaite,
brazilianite and apatite
(Mindat, Webmin, HOM, AM 63.793).
At Halsjoberg, Sweden, burangaite is associated with berlinite,
lazulite, scorzalite,
augelite, gatumbaite,
trolleite and rutile
(HOM).
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