TrekGEO > Mineral Trail > Tokai region > Gifu pref. > Annite

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Kawai Mine

Kawai, Kasagi village, Ena city, Gifu pref., Japan

This locality is closed to collecting.


Field of view: 10 mm. Annite associated with almandine. The trapezohedral red grains are almandine. The micaceous black crystals in the interstices of almandine are annite.

Recovered from skarn formed by contact metamorphism of S-type (ilmenite-series) granite of a caldera complex with a moderate-temperature hydrothermal deposit associated with the same caldera complex.

Annite from this location was described in 1961 as biotite.

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