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Toyoha mine, Sapporo, Hokkaido, Japan

Toyohaite
Toyoha mine, Sapporo, Hokkaido, Japan

Photo: 2008, JGW

Latitude: 42°58'48"N
Longitude: 141°2'28"E

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A lead-zinc-indium-silver mine featuring the Izumo, Soya and Sorachi veins. Located 30 km SW of Sapporo, close to an active hydrothermal system (some tunnels reached temperatures of 100 C). This was until recently the world's largest indium producer (30t/yr), but closed when ore reserves were exhausted in June 2006.

Genetically similar to the Pingüino deposit, Argentina.

Mineral List

49 entries listed. 43 valid minerals. 1 type locality (valid mineral).

The above list 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

- Encyclopedia of Minerals, 2nd. edition: 842
- Min. Jour. (Japan): 15: 222-232.
- Kozan Chishitsu (1989), 39, 107-22.
- Masuta, Kenzo; Kamiki, Takashi; Narui, Eiichi (1996): Polymetallic mineralization at the Toyoha south district, Hokkaido, Japan. Shigen Chishitsu 46, 45-61.
- Ishihara, Shunso (2005): An attractive mineral resource: indium from the Toyoha Mine. Chishitsu Nyusu 605, 46-54 (in Japanese).

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 15th Sep 2012 14:06:40