Spessartine
Odaira, Tono village, Iwaki city, Fukushima pref., Japan
Field of view: 2 mm. Spessartine associated with rhodonite. The transparent orange grains exhibiting no cleavage are spessartine. The massive pink parts at the lower left and at the lower right are rhodonite. Spessartine is distinguished from nambulite by exhibiting no cleavage, and from manganberzeliite by higher hardness.
Recovered from a bedded manganese deposit subjected to Epidote-Amphibolite facies regional metamorphism and contact metamorphism by granite.
Spessartine from this location was described in 1957.
Other localities
- Wada pass (Rhyolite, Euhedral)
- Hagidaira mine (Mn skarn, White)
- Kyurazawa mine (Mn skarn, Euhedral)
- Oashi mine (Mn skarn, Vein)
- Taguchi mine (Bedded Mn, AM facies)
- Gozaisho mine (Bedded Mn, EA facies)