Opal
Sukayu hot spring
Arakawa, Aomori city, Aomori pref., Japan
Field of view: 30 mm. Opal deposited from hydrothermal fluid related to the hot spring. The opaque white parts are opal. The surrounding yellowish brown parts are altered tuff.
Recovered from a hot spring hydrothermal deposit in the vicinity of a fumarole.
Other localities
- Hagidaira Mine (Bedded Mn, Noble Opal)
- Hosaka (Rhyolite, Nodule)
- Sukayu hot spring (Hot spring, Massive)
- Opal Quest Mine (Shale, replacing Bivalvia)
- Old Timers Mine (Shale, replacing Bivalvia)