Ferberite
Kawamata, Nikko city, Tochigi pref., Japan
Source for Tungsten
Field of view: 10 mm. Ferberite. The tabular black crystals are ferberite. The white host is gangue quartz.
Recovered from a quartz vein of a hydrothermal Au-Ag deposit associated with rhyolitic tuff breccia, eruption products of a caldera. Formed in the late Miocene (7.2 Ma).
Ferberite from this location was described in 1908.
Other localities
- Takatori Mine (Pneumatolytic, Tabular)
- Nishizawa Mine (Hydrothermal, Tabular)
- Chichibu Mine (Hydrothermal Skarn, Tabular)
- Ichiyanagi Mine (Pneumatolytic, Tabular)