Cornwallite?
Hayashi
Setoda village, Onomichi city, Hiroshima pref., Japan
Field of view: 5 mm. The reniform green group is probably cornwallite. The white basement is gangue quartz.
Recovered from an open space of a quartz vein in a meteoric oxidation zone of a high-temperature hydrothermal deposit.
Cornwallite from this location was described in 2000.