Paraberzeliite

paraberzeliite

svabite

schaferite

calciojohillerite

Images

Formula: NaCaCaMg2(AsO4)3
Anhydrous arsenate
Specific gravity: 3.811 calculated
Hardness: 3½
Colour: Brown, green
Environments

fumeroles

Paraberzeliite is a relatively new mineral, approved 2018, and to date (March 2022) 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, paraberzeliite was found in the deepest zone, associated with anhydrite, diopside, hematite, svabite, berzeliite, schäferite, calciojohillerite, magnesioferrite, ludwigite, fluorapatite, powellite, baryte and rhabdoborite-group and aphthitalite-group members. In the middle zone of the fumarole, paraberzeliite occurs with hematite, calciojohillerite, badalovite, johillerite, nickenichite, tilasite, svabite, fluorophlogopite, sanidine, cassiterite, anhydrite, metathénardite and belomarinaite. Paraberzeliite forms prismatic crystals up to 0.2 mm × 0.2 mm × 1 mm often occurring in open-work aggregates (MM 86.1.103-111).

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