TrekGEO > Mineral Trail > Tohoku region > Aomori pref. > Goethite

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Sukayu hot spring

Arakawa, Aomori city, Aomori pref., Japan


Length: 40 mm. Goethite associated with hematite. Black parts are goethite. Goethite deposits layers and forms a porous aggregates. The red powdery parts in the vugs are hematite.

Recovered from a goethite-jarosite deposit formed by bacterial Fe biomineralization from Fe-Sulfate spring water. Formed in less than a million years.

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