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Formula: Ca3Sn2(SiFe3+2)O12
Nesosilicate (insular SiO4 groups), schorlomite group,
garnet supergroup,
tin-bearing mineral
Crystal System: Isometric
Specific gravity: 4.49 calculated
Streak: White with a cream tint
Colour: Light brown or yellow
Environments
Volcanic igneous environments
Metamorphic environments
Toturite was approved in 2009 but to date (March 2025) has been reported only from the type
locality.
Localities
At the type locality, Xenolith no. 3, Lakargi Mountain, Upper Chegem volcanic caldera, Chegemsky District,
Kabardino-Balkaria, Russia, toturite occurs as an accessory mineral in high-temperature altered
carbonate-silicate xenoliths in ignimbrite. It forms thin regular
growth zones and irregular spots in the Fe3+-dominant analog of
kimzeyite.
The association of toturite with larnite,
rondorfite, wadalite,
magnesioferrite, lakargiite
and cuspidine indicates a high temperature of formation, above 800°C
(AM 95.1305-1311).
Toturite from the Lakargi Mountain - Image
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