Kushikino mine (Mitsui-Kushikino mine), Kushikino City, Kagoshima Prefecture, Kyushu Region, Japan

Calcite
Kushikino mine, Kushikino City, Kagoshima Prefecture, Kyushu Region, Japan

Photo: Y.Okazaki

Latitude: 31°45'15"N
Longitude: 130°18'0"E

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Epithermal gold-silver veins with quartz-calcite gangue in Miocene andesite, owned by Mitsui Mining (1958 production: 804 Kg Au, grade 5.3g/t ; 6.8 tons Ag, grade 47g/t.)
Mine now closed. Famous among collectors for its superb calcite "butterfly twins".

References

- Econ Geol (1985) 80:283-293
- Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
- Ore Geology Reviews 34 (2008) 597-609

Mineral List

30 entries listed. 26 valid minerals.

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