Jarosite
Rendaiji, Shimoda city, Shizuoka pref., Japan
This locality is closed to collecting.
Field of view: 50 mm. Jarosite perched on quartz. The fine reddish-brown grains are jarosite. The transparent basement is hexagonal pyramidal faces of prismatic crystals of gangue quartz.
Recovered from an open space of a quartz vein in a moderate-temperature hydrothermal deposit associated with andesitic-basaltic pyroclastic rocks of an oceanic arc subjected to propylitization alteration.
Other localities
- Io valley (Fumarole, Granular)
- Sukayu hot spring (Bog Iron, Massive)
- Kawazu Mine (Hydrothermal, Granular)