Azurite
Kyowa-Funaoka, Daisen city, Akita pref., Japan
Source for "azurite blue", silicon copper
Field of view: 10 mm. Azurite associated with malachite. The group of tabular blue crystals is azurite. The green crusts are malachite. The transparent basement is gangue quartz.
Recovered from an open space of a quartz vein 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
- Kisan-mori Mine (Hydrothermal, Tabular)
- Mikawa Mine (Hydrothermal, Tabular)
- Okorogawa Mine (Hydrothermal, Tabular)
- Takaneyama Mine (Hydrothermal, Tabular)
- Nakatatsu Mine (Hydrothermal Skarn, Tabular)
- Naganobori Mine (Pneumatolytic Skarn, Tabular)