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

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Gozaisho Mine

Odaira, Tono village, Iwaki city, Fukushima pref., Japan


Field of view: 10 mm. Pyrophanite associated with rhodonite. The tabular reddish-brown crystals are pyrophanite. The massive pale pink parts around pyrophanite are aggregate of fine rhodochrosite crystals. The massive pink parts are aggregate of fine rhodonite crystals.

Recovered from a bedded manganese deposit subjected to Epidote-Amphibolite facies regional metamorphism and contact metamorphism by granite.

Pyrophanite from this location was described in 1979.

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