Aurichalcite
Kakino, Yamagata city, Gifu pref., Japan
Field of view: 10 mm. A blue to white crust of micaceous aurichalcite. The brown basement is a limonite crust.
Recovered from a meteoric oxidation zone of a moderately high-temperature hydrothermal deposit combined with skarn formed by contact metamorphism of I-type (Magnetite-series) granite associated with a caldera complex.
Other localities
- Kawazu Mine (Hydrothermal, Acicular)
- Mikawa Mine (Hydrothermal, Micaceous)
- Kinjo Mine (Hydrothermal Skarn, Crust)