TrekGEO > Mineral Trail > Tohoku region > Akita pref. > Azurite

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Kisan-mori Mine

Kyowa-Funaoka, Daisen city, Akita pref., Japan

Source for "azurite blue", silicon copper


Field of view: 10 mm. Azurite associated with malachite. The group of tabular blue crystals is azurite. The green crusts are malachite. The transparent basement is gangue quartz.

Recovered from an open space of a quartz vein in a meteoric oxidation zone of a moderate-temperature hydrothermal deposit in andesitic pyroclastics formed by dacite probably associated with a volcanic activity of a caldera. Formed in less than 50 years after the mine was closed,

Cerussite from this location was described in 1898.

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