Reflected light photomicrograph of a grab sample epithermal quartz vein breccia in rhyolite tuff with hydrothermal quartz, sericite and pyrite alteration. Secondary adularia crystals and sericite-altered clasts of rhyolite are set in a comb/cockade textured breccia matrix with open space vugs lined by silica and fine-grained pyrite. This grab sample assayed 1.2 g/t gold and 9.1 g/t silver.
Reflected light photomicrograph of a grab sample epithermal quartz vein breccia in rhyolite tuff with hydrothermal quartz, sericite and pyrite alteration. Secondary adularia crystals and sericite-altered clasts of rhyolite are set in a comb/cockade textured breccia matrix with open space vugs lined by silica and fine-grained pyrite. This grab sample assayed 1.2 g/t gold and 9.1 g/t silver.