The Hillgrove Gold-antimony Project, australia's largest antimony resource, has been a significant source of critical minerals since 1857. Recent drilling at Clarks Gully and surrounding zones has uncovered high-grade Sb-au-W mineralisation, renewing exploration interest in this New England Orogen (NSW) deposit. This resurgence aligns with global efforts to secure responsible supplies of energy-transition metals. antimony's relevance in the production of fire retardants, lead-acid batteries, as well as its inclusion in multiple emerging electrical and energy-related technologies, highlights the need for advanced mineralogical characterisation workflows that support sustainable supply. This study showcases the use of ECORE, an automated drill core scanner combining laser-induced breakdown spectroscopy (LIBS) with machine learning-driven mineral identification, as a tool for rapid characterisation of the mineralogy of Sb-W-bearing mineralised core sections from the Clarks Gully deposit, operated by Larvotto Resources Limited. LIBS-based imaging revealed geochemical signatures associated with stibnite and scheelite, while facilitating discrimination of textural styles (eg massive versus disseminated stibnite) and associated mineral assemblages. The Tescan Integrated Mineral analyzer (TIMa) was used as a supporting tool to verify ECORE- derived mineralogy and to investigate stibnite occurrences in greater microscale detail. TIMa analyses revealed stibnite in multiple textural settings, including massive to narrow veins in a stibnite- quartz-ankerite assemblage, or as fine intergrowths with potassium feldspar, quartz and chlorite. It also showed a correlation with pyrite and arsenopyrite. The integration of large-scale ECORE scanning with targeted TIMa validation established a systematic workflow for Sb-W characterisation. This study demonstrates how automated mineralogy reduces exploration risk, reinforcing the role of digital geoscience tools like ECORE in securing critical minerals for the energy transition.