Occurrence of gold and silver minerals in Togi mine, Shika town, Hakui, Ishikawa Prefecture

Abstract

Togi gold mine is located in the middle part of Noto peninsula. However, the occurrence of gold and silver minerals in Togi mine has not been revealed. Therefore, we investigated to reveal the occurrence of these minerals in Togi mine. The pyroxene andesites of mother rock of have been caught on hydrothermal alteration. The main ore minerals in quartz vein including gold and silver minerals are pyrite, chalcopyrite and sphalerite. Electrum with 47 mol.% Ag, aguilarite, native silver and aggregate of unidentified minerals occurs as interstitial minerals in reddish brown quartz vein.