Arakawa Mine
Kyowa-Arakawa, Daisen city, Akita pref., Japan
This locality is closed to collecting.
Occurrence
Moderate-T hydrothermal deposit
Moderate temperature hydrothermal deposit in mudstone, acidic pyroclastic rocks and dolerite of middle Miocene (17.4 - 12.3 Ma) Kitanomatasawa Formation. Ages of sedimetary rocks were determined by microfossils, and plutonic rocks by K-Ar radiometric dating of biotite.
A sightseeing pit mouth is at the left of this photograph. The flat space in front of the pit mouth is a remain of hand picking concentrator. The building at the right is a remain of flotation concentrator.
Reported Minerals
- Pyrite
- Chalcopyrite
- Sphalerite
- Copper
- Bornite
- Malachite
- Veszelyite
- Quartz
- Amethyst
- Chamosite
Mineral Assemblages
- Quartz(Gangue) - Chamosite - Chalcopyrite - Sphalerite
Details of the mine
Cu was mainly mined. This mine is used as sightseeing spot.
History
- 1700: The deposit was discovered.
- 1738 - 1743: The deposit was mined by Satake local government.
- 1872: Nagamoto Mononobe started to mine the deposit, and several owners kept mining the deposit afterwards.
- 1940: The mine was closed.
Localities
- Kisan-mori Mine (Cu-Pb-Zn)
- Mikawa Mine (Cu-Pb-Zn, Siderite)
- Takami Mine (Cu-Pb-Zn)
- Gunma Mine (Cu-Pb-Zn)
- Yunosawa Mine (Pb-Zn)
- Okuto Mine (Pb-Zn)
- Arakawa Mine (Cu-Zn)
- Osarizawa Mine (Cu-Zn)
- Sayama Mine (Cu-Zn)
- Washinosu Mine (Cu-Zn)
- Yashu Mine (Cu)
- Takaneyama Mine (Cu-Zn-Mn)
- Kawazu Mine (Zn-Au-Te-Mn)
- Manju Mine (Zn)
- Mount Nesugata (Mn oxide)
- Ryushima Mine (Mn carbonate)