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

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Yunosawa Mine

Ikarigaseki, Hirakawa city, Aomori pref., Japan

This locality is closed to collectors.

Source for Lead


Field of view: 3 mm. Scattered grains, probably galena. The grains are cubes with triangular and hexagonal faces, and exhibit perfet cleavage. The white host is altered rhyolitic welded tuff containing fine baryte.

Recovered from a moderate-temperature hydrothermal deposit associated with rhyolitic welded tuff in a caldera complex. Formed in the late Pliocene (3.5 Ma).

Cerussite from this location was described in 1925.

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