IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for Educators
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Chugoku region, Honshu Island, Japan

This page is currently not sponsored. Click here to sponsor this page.
 
Latitude & Longitude (WGS84): 35° 9' 51'' North , 132° 26' 30'' East
Latitude & Longitude (decimal): 35.1644444444, 132.441666667
Other regions containing this locality:Asia


The area commonly known as the Iwami "mine" is actually a small mining district which historically had about 600 adits and shafts. Epithermal vein-type gold-silver-copper deposit which, during part of the Middle Ages, produced a third of the world's annual silver output. The mine was the largest silver mine in Japanese history.
The Ag-Cu veins are hosted in a dacitic intrusive body at the deep portion of the Eikyu area, and veinlets with disseminated Ag mineralization in dacitic tuff breccia at a shallow portion of the Fukuishi area. Hydrothermal alteration associated with the silver mineralization is characterized by intense potassium metasomatism with oxidizing conditions.

Discovered around 1300, reopened in 1525. Last worked from 1891 to 1919 or 1923 (sources differ).
Now a UNESCO World Heritage Site.

Mineral List

Mineral list contains entries from the region specified including sub-localities

11 valid minerals.

Localities in this Region

Japan

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

- Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
- Nanshi Zeng, Eiji Izawa, Koichiro Watanabe and Yoshinobu Motomura (2010): Hydrothermal Alteration Related to Silver Mineralization at the Iwami Silver Deposit, Shimane Prefecture, Japan. Resource Geology 60, 234-248.

External Links


Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: November 16, 2018 01:49:41 Page generated: April 9, 2017 03:06:06
Go to top of page