TrekGEO > Mineral Trail > Koshinetsu region > Niigata pref. > Osarizawaite

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Mikawa Mine

Araya, Aga city, Higashi-Kambara county, Niigata pref., Japan


Field of view: 5 mm. Earthy osarizawaite. The earthy green parts are groups of fine osarizawaite crystals. The brown parts are limonite crusts. The white basement is gangue quartz.

Recovered from an open space of a quartz vein in a meteoric oxidation zone of a moderate-temperature hydrothermal deposit associated with rhyolite.

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