Anhydrous normal phosphate, alluaudite group, forms a series with hagendorfite
Specific gravity: 3.5
Streak: Greenish white
Colour: Dark olive-green
Varulite occurs in complex granite pegmatites, either as a
primary mineral or as an alteration product of
triphylite–lithiophilite; it also occurs
as nodules in shale. Alluaudite is an
associated mineral (HOM).
Att the type locality, Varuträsk, Skellefte mining district, Västerbotten, Sweden, varulite occurs in a granite pegmatite (Mindat).
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