Carbonaceous shales with pyrite, marcasite and graphite contain minor germanium, zirconium, uranium and trace platinum. A sample assayed 0.02 per cent germanium, 0.12 per cent zirconium, 0.025 per cent uranium and 0.4 gram per tonne platinum (Assessment Report 184). The black shales belong to the Ordovician Glenogle Formation and nearby argillaceous sandstone and dark grey limestone belong to the Upper Cambrian to Middle Ordovician McKay Group.