Brochantite
Shimobe, Minobu city, Minami-Koma county, Yamanashi pref., Japan
Source for copper
Field of view: 5 mm. Tabular brochantite The fine green tabular crystals are brochantite. Tabular crystals are repeated twins by acicular crystals. The brown basement is mudstone.
Recovered from a meteoric oxidation zone of a sediment-hosted Cu deposit subjected to Prehnite-Pumpellyite facies metamorphism.
Brochantite from this location was described in 1982.
Other localities
- Kamioka Mine (Pneumatolytic Skarn, Crust)
- Naganobori Mine (Pneumatolytic Skarn, Crust)
- Kawazu Mine (Hydrothermal, Primsatic)
- Mikawa Mine (Hydrothermal, Primsatic)
- Kisan-mori Mine (Hydrothermal, Prismatic)
- Myoho Mine (Sediment-hosted Cu, Tabular)