Epidote
Otaki, Chichibu city, Saitama pref., Japan
Field of view: 10 mm. Epidote associated with grossular. The transparent green prisms are epidote. The brown grains at the top are grossular. The white parts at the lower left and the lower right are calcite.
Recovered from an open space of skarn formed by contact metamorphism of I-type (Magnetite-series) quartz diorite. Formed in the late Miocene (6 Ma).
Epidote from this location was described in 1918.
Other localities
- Asemi river (GS facies, Columnar)
- Chichibu Mine (Skarn, Prismatic)
- Kami-Takeshi (Epidotization, Radial)
- Oshuku (AE facies, Prismatic)