Wollastonite
Otaki, Chichibu city, Saitama pref., Japan
Field of view: 20 mm. Wollastonite associated with axinite-(Fe). The radial groups of white prisms are wollastonite. The surrounding massive pale purple parts are axinite-(Fe).
Recovered from skarn formed by contact metamorphism of I-type (Magnetite-series) quartz diorite. Formed in the late Miocene (6 Ma).
Wollastonite from this location was described in 1957.
Other localities
- Kasuga Mine (Dolomite Skarn, Columnar)
- Nakatatsu Mine (Skarn, Radial)
- Chichibu Mine (Skarn, Prismatic)
- Naganobori Mine (Skarn, Fibrous)
- Akatani Mine (Skarn, Fibrous)
- Kadoi creek (Skarn, Fibrous)