Hematite

Sukayu hot spring

Arakawa, Aomori city, Aomori pref., Japan

Source for Iron

Field of view: 40 mm. Hematite associated with goethite. The powdery red parts are hematite. The black parts are goethite forming a porous group. The open spaces of the goethite group are filled with hematite.

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

Other localities

List of Japanese hematite localities

Waga-sennin Mine (Metasomatic Skarn, Rosette)
Akatani Mine (Metasomatic Skarn, Platy)
Chichibu Mine (Hydrothermal Skarn, Platy)
Mikawa Mine (Hydrothermal, Botryoidal)
Gozaisho Mine (Bedded Mn, Tabular)
Iwaisawa Mine (Bedded Mn, Massive)
Sukayu (Bog Iron, Powder)
Gunma Mine (Bog Iron, Powder)