Tellurite

Field of view: 10 mm. Tellurite associated with tellurium. The tabular yellow crystals exhibiting perfect cleavage along the basal plane are tellurite. The granular pale yellow basement is fine crystals of gangue quartz colored by Te-ion.

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

The first tellurite from Japan was reported from this location in 1933.