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Jarosite

Io valley

Numanodaira, Inawashiro city, Yama county, Fukushima pref., Japan

Jarosite

Field of view: 50 mm. Crystals of jarosite. The transparent brown grains are jarosite. The grayish-white basement is altered tuff.

Recovered from tuff altered by volcanic gas.

Jarosite from this location was described in 1997.

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