Rhodonite
Odaira, Tono village, Iwaki city, Fukushima pref., Japan
Source for manganese
Field of view: 2 mm. Rhodonite associated with braunite. The transparent red grains are rhodonite. The surrounding massive black parts are braunite. The white grains are quartz.
Recovered from a bedded manganese deposit subjected to Epidote-Amphibolite facies regional metamorphism and contact metamorphism by granite.
Rhodonite from this location was described in 1952.
Other localities
- Hagidaira Mine (Mn skarn, Tabular)
- Higashizawa Mine (Mn skarn, Prismatic)
- Kyurazawa Mine (Mn skarn, Fe-rich)
- Mogurazawa Mine (Mn skarn, Purple and Pink)
- Takanosu Mine (Mn skarn, Banded)
- Kurokawa Mine (Mn skarn, Massive)
- Kanoiri Mine (Mn skarn, Massive)
- Gozaisho Mine (Bedded Mn, EA facies)
- Kiyokawa Mine (Bedded Mn, Zeo facies)