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Naganobori mine, Mine City, Yamaguchi Prefecture, Chugoku Region, Honshu Island, Japan

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 34° North , 131° East (est.)
Margin of Error:~19km
Locality type:Mine
Köppen climate type:Cfa : Humid subtropical climate

A cobalt-copper mine operated during the period 1941-1945. Owned by the Nippon Cobalt Mining Co. and/then the Mitsui Mining Co. Ore is a contact deposit between Paleozoic limestone and granite porphyry. Output was 392 tons. Includes Eboshi and Yoboshi orebodies.
Mining for copper was begun in the eighth century and supplied the copper for the Buddha casting at Todai-ji.

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33 valid minerals.

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This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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Rocks & Minerals: 22:223. ("Ota-machi, Mine-gun" is an error).
Yoshimura, K., Kurisaki, K., Okamoto, T., Fujikawa, M., Ikeda, Y., Yamada, T., & Matsuda, H. (2014). Sulfide Ore Smelting at the Naganobori Copper Mine Recorded on Speleothems from the Ogiri No. 4 Pit on the Akiyoshi-dai Plateau, Yamaguchi, Japan. ISIJ International, 54(5), 1147-1154.

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