TrekGEO > Mineral Trail > Kanto region > Gunma pref. > Rhodonite

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Hagidaira Mine

Konaka, Azuma village, Midori city, Gunma pref., Japan

Source for manganese


Field of view: 30 mm. Rhodonite associated with quartz. The tabular pink crystals aligned vertically are rhodonite. The surrounding transparent parts are quartz. The fine grains at the bottom are rhodonite and quartz.

Recovered from a chert-hosted bedded manganese deposit subjected to Hornblende-hornfels facies contact metamorphism.

Rhodonite from this location was described in 1952.

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