Hemimorphite

Naka, Shimoda city, Shizuoka pref., Japan

Field of view: 5 mm. A hemimorphite crystal. The transparent prism is hemimorphite. The surrounding opaque white host is gangue quartz.

Recovered from an open space of a quartz vein in a meteoric oxidation zone of a moderate-temperature hydrothermal deposit associated with andesitic-basaltic pyroclastic rocks of an oceanic arc subjected to propylitization alteration.

Other localities

List of Japanese hemimorphite localities

Kamioka Mine (Pneumatolytic Skarn, Tabular)
Horado Mine (Hydrothermal Skarn, Tabular)
Nakatatsu Mine (Hydrothermal Skarn, Reniform)
Kawazu Mine (Hydrothermal, Tabular)
Takaneyama Mine (Hydrothermal, Prismatic)