Jadeite
Oyashirazu beach
Tonami, Itoigawa city, Niigata pref., Japan
Field of view: 30 mm. A group of white grains of jadeite.
Recovered from a tectonic block in Oeyama Ophiolite.
Jadeite from this region was designated the prefectural rock of Niigata in 2016 by the Geological Society of Japan.
Other localities
- Oyashirazu seachore (Serpentinite, Green)
- Mount Osa (Serpentinite, White Massive)
- Hishiro valley (Serpentinite, Green)
- Mount Inafukumi (Blueschist facies, Prismatic)