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Formula: Cu5O2(AsO4)2
Arsenate
Crystal System: Triclinic
Specific gravity: 5.30 calculated
Hardness: 3½
Colour: Olive-green to dark olive-green
Environments
Popovite is a relatively new mineral, approvrd in 2013 and to date (January 2023) reported only from the type
locality.
Localities
At the type locality, the Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption,
Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia, popovite is associated with
ericlaxmanite, kozyrevskite,
urusovite, lammerite,
paralammerite, johillerite,
bradaczekite, tenorite,
hematite, aphthitalite,
anhydrite, langbeinite,
calciolangbeinite and
arsenic-bearing orthoclase.
Popovite occurs as prismatic or tabular crystals and as grains up to 0.2 mm in size forming clusters up to
1.5 mm in size and as crusts on basalt
scoria or on aphthitalite
incrustations. Popovite is transparent with a vitreous to greasy lustre. Its colour is olive-green to dark
olive-green, but fine-grained varieties are light yellow-green
(MM 79.1.133-143).
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