TrekGEO > Mineral Trail > Chugoku region > Yamaguchi pref. > Chalcopyrite

Japanese page


Naganobori Mine

Naganobori, Mito village, Mine city, Yamaguchi pref., Japan

Source for Copper


Field of view: 40 mm. Chalcopyrite associated with hedenbergite. The massive yellow parts are chalcopyrite. The dark green host is hedenbergite composed of parallel prisms elongated vertically.

Recovered from a pneumatolytic deposit combined with skarn formed by contact metamorphism of S-type (ilmenite-series) granite. Formed in the Late Cretaceous (85 Ma).

Chalcopyrite from this location was described in 1902.

Other localities

Copyright (c) 2017 NariNari, All Rights Reserved.