Kaiya
Kaiya, Higashi-chichibu city, Chichibu county, Saitama pref., Japan
Occurrence
Pumpellyite-Actinolite facies high-P metamorphic rocks
Minerals included in the basaltic tuff of Mikabu Unit, Sanbagawa Belt. The basaltic tuff was subjected to Pumpellyite-Actinolite facies metamorphism
Outcrop of basaltic tuff of Mikabu Unit of Sanbagawa Belt subjected to Pumpellyite-Actinolite facies metamorphism. The white vein on the outcrop is composed of omphacite and albite. The dark green host is massive basaltic tuff. Omphacite is green prisms growing vertically to the vein wall. White albite is associated with the vein.
Reported Minerals
- Omphacite
- Hornblende
- Albite
Mineral Assemblages
- Omphacite - Albite
- Hornblende - Epidote
Localities
- Kosugi (Lawsonite)
- Asahine (Pumpellyite)
- Kaiya (Omphacite)
- Mount Nyukasa (Omphacite)
Related Occurrences
- Albite-Epidote-hornfels facies
- Hornblende-hornfels facies
- Pyroxene-hornfels facies
- Sanidinite-hornfels facies