TrekGEO > Mineral Trail > Kanto region > Saitama pref. > Iwadono Mine

Japanese page

Iwadono Mine

Gosho, Yoshimi city, Hiki county, Saitama pref., Japan


Besshi massive sulfide deposit

Besshi Massive Sulfide Deposit in the accretionary complex subjected to Greenschist facies metamorphism as a low grade part of the early Paleocene (64 Ma) high-P Yoshimi metamorphic rocks. The Yoshimi metamorphic rocks may be a part of the Sambagawa metamorphic belt. The metamorphic age was determined by U-Pb SHRIMP dating of Zircon.

Reported Minerals

  • Pyrite
  • Chalcopyrite
  • Tetrahedraite
  • Covellite

Mineral Assemblages

  • Quartz - Pyrite

Details of the mine

Mined before 1940. 10 tons of Cu ore with 3% quality was shipped to Niigata.

Copyright (c) 2015 NariNari, All Rights Reserved.