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
it also occurs as nodules in shale.
Alluaudite is an
associated mineral (HOM).
At the type locality, Varuträsk, Skellefte mining district, Västerbotten, Sweden, varulite occurs in a granite pegmatite (Mindat).
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