Formula: (NaCa2)Mg2(AsO4)3
Anhydrous normal arsenate, forms a series with manganberzeliite
Specific gravity: 4.08 to 4.27
Hardness: 4½ to 5
Streak: Nearly white to yellow-orange
Colour: Yellow, Orange, colorless, brownish-orange; colorless to orange in transmitted light
Solubility: Readily soluble in nitric or hydrochloric acid
Environments:
Metamorphic environments
Hydrothermal environments
Berzeliite occurs in metamorphosed iron-manganese orebodies (Webmin) associated with
hausmannite,
rhodonite,
tephroite,
hedyphane, caryinite, manganoan
biotite, långbanite,
braunite, hematite,
dolomite, baryte
and calcite
(HOM).
At Örebro, Närke, Sweden, berzeliite occurs in veinlets with
rhodonite,
tephroite,
manganosite,
pyrochroite and
baryte
(Dana).
At the type locality, Långban, Filipstad, Värmland, Sweden, berzeliite occurs in metamorphosed
limestone
skarn associated with
manganophyllite (variety of biotite),
hausmannite
and caryinite (Also at Moss mine, Värmland)
(Mindat, Dana).
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