Italy
The Shimokawa Copper Mine, Shimokawa, Hokkaido, Japan is a polymetal mine particularly rich in copper. Its main ore minerals were chalcopyrite, pyrrhotite, pyrite and sphalerite. The ore body was formed at diabase intrusion into the sedimentary slate layer. The formation of ore have started at mid-o
cean ridge and was very prolonged, with several zones of different composition attributed to changing ambient conditions are discernible across ore body.
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