Aragonite
Higashi-Akatani, Shibata city, Niigata pref., Japan
Field of view: 10 mm. Aragonite crystals. The short prismatic white crystals are aragonite. The massive brown basement is limestone with fine hematite contamination.
Recovered from an open space of a moderate-temperature hydrothermal deposit associated with an oxidative metazomatic zone combined with skarn formed by contact metamorphism of S-type (Ilmenite-series) granodiorite.
Aragonite from this location was described in 1982.
Other localities
- Choshi (Andesite, Pink)
- Onara (Serpentinite, Tabular)
- Kanayamadani valley (Serpentinite, Tabular)
- Shiraki (Serpentinite, Prismatic)
- Yoshikawa Mine (Serpentinite, Fibrous)
- Akatani Mine (Metasomatic Skarn, Prismatic)
- Taguchi Mine (Bedded Mn, Acicular)