Hemimorphite

Field of view: 10 mm. Hemimorphite perched on quartz. The rosette group of tabular transparent crystals at the upper left is hemimorphite. The bluish-green hemisphere at the lower right is aurichalcite. The transparent basement is gangue quartz.

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

Hemimorphite from this location was described in 1982.