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Konomai mines (Kohnomai mine), Monbetsu (Mombetsu), Hidaka Province, Hokkaido, Japan

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Latitude & Longitude (WGS84): 44° 7' 0'' North , 143° 20' 30'' East
Latitude & Longitude (decimal): 44.11667,143.34167
Köppen climate type:Dfb : Warm-summer humid continental climate


A prolific gold and silver mine, started in 1917. Production reached a peak in 1954 (3 tons Au per year), then declined and the mine was closed in 1973. (1958 production: 2.7 t Au, grade 6.4g/t; 39.1 t Ag, grade 94g/t.) Currently best known to collectors for its well-crystallized post-mining iron sulfates.


Mineral List


24 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Mesozoic - Late Paleozoic
66 - 358.9 Ma



ID: 3189180
Paleozoic-Mesozoic sedimentary rocks

Age: Phanerozoic (66 - 358.9 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. 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 mindat.org 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.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
- Metal Mining Mining Geology, A.I.M.E. (1937): 305
- Geological Survey of Japan (1960): Geology and Mineral Resources of Japan, p.174-175.
- Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.

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