TrekGEO > Mineral Trail > Tohoku region > Fukushima pref. > Schorl

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Mount Atago

Akanuma, Nakata city, Koriyama county, Fukushima pref., Japan

This locality was closed to collecting.


Field of view: 200 mm. A group of schorl. The columnar group of black prisms is schorl. The platy silver-white crystals on schorl are muscovite.

Recovered from pegmatite associated with S-type (ilmenite-series) granite intruded in peridotite and greenschist, the upper part of an oceanic arc subjected to Greenschist facies medium-pressure metamorphism. Formed in the Late Cretaceous (100 Ma).

Schorl from this location was described in 1974.

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