TrekGEO > Mineral Trail > Koshinetsu region > Yamanashi pref. > Chalcopyrite

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Kusama Mine

Shimobe, Minobu city, Minami-Koma county, Yamanashi pref., Japan

Source for Copper


Field of view: 10 mm. A chalcopyrite crust. The yellow crust is chalcopyrite. The red to white basement is aggregate of fine hematite and quartz crystals, and the red parts are rich in hematite.

Recovered from a mudstone-hosted Cu-Mn deposit subjected to Zeolite facies metamorphism. Formed in the late Miocene (11 Ma).

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