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Magnetite

Asemi river

Uriuno, Motoyama city, nagaoka county, Kochi pref., Japan

Source for Iron

Magnetite

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)
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