TrekGEO > Mineral Trail > Kanto region > Gunma pref. > Suzukiite

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Mogurazawa Mine

Kamibishi, Hishi village, Kiryu city, Gunma pref., Japan


Field of view: 5 mm. Suzukiite associated with rhodonite. The green prisms with a vitreous luster are suzukiite. The surrounding pink parts exhibiting perfect cleavage are rhodonite. The transparent parts with a vitreous luster are quartz. The black parts are manganese dioxide formed by weathering.

Recovered from a chert-hosted bedded manganese deposit subjected to Albite-Epidote-hornfels facies contact metamorphism.

The first suzukiite in the world was described from this location in 1982.

Other localities

  • Mogurazawa Mine (Bedded Mn, Prismatic)
  • Tanohata Mine (Bedded Mn, Tabular)
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