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Formula: Mg2(AsO4)F
Arsenate, wagnerite group
Specific gravity: 3.70 calculated
Hardness: 5
Colour: Yellow, lemon-yellow, greenish yellow or colourless
Environments
Although arsenowagnerite was approved in 2015, to date (June 2022) it has been reported only from the type
locality.
Localities
At the type locality, the Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption,
Tolbachik volcano, Kamchatka Krai, Russia, arsenowagnerite was found in sublimates of the fumarole,
associated closely with johillerite,
tilasite, anhydrite,
hematite,
fluorophlogopite,
cassiterite,
calciojohillerite,
aphthitalite and
fluoborite. Arsenowagnerite occurs as equant to tabular crystals
up to 1 mm across combined in interrupted crusts up to 0.1 cm × 1.5 cm × 3 cm
(MM 82 (4): 877–888).
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