Pyrite
Araya, Aga city, Higashi-Kambara county, Niigata pref., Japan
Source for Sulfuric acid
Field of view: 5 mm. A group of pyrite crystals. The group of pale yellow cubes with a metallic luster are pyrite. The cubic crystals of pyrite are composed of (100) faces. The white basement is gangue quartz.
Recovered from an open space of a quartz vein in a moderate-temperature hydrothermal deposit associated with rhyolite. Formed in the early Miocene (21 Ma).
Pyrite from this location was described in 1875.
Other localities
- Chichibu Mine (Hydrothermal Skarn, Cubic)
- Waga-Sennin Mine (Metasomatic Skarn, Cubic)
- Harimichi Pass (Sericitization, Variety)
- Awashiro Mine (Sericitization, Octahedral)
- Hongo Mine (Hydrothermal, Octahedral)
- Mikawa Mine (Hydrothermal, Cubic)
- Mogurazawa Mine (Mn Skarn, Cubic)
- Iwaisawa Mine (Bedded Mn, Filmy)
- Kanasaki (Besshi, Massive)
- Iwadono Mine (Besshi, Cubic)
- Unosaki (Mudstone, Scepter)