Sporadic epigenetic antimony-gold mineralisation along the ENE-trending Antimony line of the Murchison schist belt is structurally controlled and spatially related to carbonated rock types with quartz-carbonate veins in tension fractures. The Antimony line is a discontinuous zone of brittle-ductile deformation and is locally oblique to lithological layering within a broad ductile shear zone. This tectonically early (D1) shear zone has an oblique-to dip-slip, reverse (north-side-up) movement sense with downward-facing fold structures in the hangingwall. Later (D2) fold structures deformed the Antimony line and its wallrocks into steep structures. The Antimony line is intruded by granitoids which post-date D1 and are not directly related to mineralisation, the source of which may have been metamorphic fluids.