Chalcopyrite

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).

Other localities

List of Japanese chalcopyrite localities

Kisan-mori Mine (Hydrothermal, with Galena)
Mikawa Mine (Hydrothermal, Massive)
Sayama Mine (Hydrothermal, Tetrahedral)
Naganobori Mine (Pneumatolytic Skarn, Massive)
Kusama Mine (Bedded Mn, Massive)