Cerussite
Kyowa-Funaoka, Daisen city, Akita pref., Japan
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Field of view: 7 mm. Granular cerussite. The translucent white parts are cerussite. The cerussite grain at the center is a pseudocubic penetration twin by three prisms. The notch at the center of the grain indicates that the grain is a twin. The basement is gangue quartz encrusted with dark brown limonite.
Recovered from an open space of a quartz vien in a meteoric oxidation zone of a moderate-temperature hydrothermal deposit in andesitic pyroclastics formed by dacite probably associated with a volcanic activity of a caldera. Formed in less than 50 years after the mine was closed,
Cerussite from this location was described in 1898.
Other localities
- Goka Mine (Hydrothermal, Reniform)
- Kisan-mori Mine (Hydrothermal, Pseudocubic)
- Mikawa Mine (Hydrothermal, Prismatic)
- Nakatatsu Mine (Hydrothermal Skarn, Prismatic)
- Kamioka Mine (Pneumatolytic Skarn, Vein)