Magnetite
Asemi river
Uriuno, Motoyama city, nagaoka county, Kochi pref., Japan
Source for Iron
Field of view: 10 mm. Magnetite crystals. The octahedral black crystals are magnetite. The dark green basement is chlorite of greenschist.
Recovered from greenschist in an accretionary complex subjected to Greenschsit facies high-pressure metamorphism.
Magnetite from this location was described in 1977.
Other localities
- Chichibu Mine (Hydrothermal Skarn, Granular)
- Asemi River (High-P metamorphic, Octahedral)
- Hase Mine (High-P metamorphic, Octahedral)
- Onara (Serpentinite, Granular)