The Barriere feldspar prospect is located (on the G claims) about 16 kilometres west of Barriere.

A north trending body of syenite and monzonite related to the Late Triassic to Lower Jurassic Thuya batholith intrudes greenstone, sandstone, argillite and phyllite of the late Paleozoic Harper Ranch Group. The intrusive body is medium grained, creamy buff in colour and is locally coarsely porphyritic. The intrusion is 10 kilometres long and up to 2.5 kilometres wide.

At the prospect, a pegmatitic syenite zone trends northward for up to 1.6 kilometres within the intrusive hostrocks. Trench exposures reveal coarse grained, pinkish grey syenite displaying iron oxide staining on weathering surfaces. A 3-metre wide basaltic to andesitic dike cuts the syenite.

The syenite is comprised of potassium feldspar crystals up to 6 centimetres in diameter with interstitial calcite and iron sulphides. Iron oxides can be seen corroding feldspar grains in thin section. An average assay from the proposed quarry area on the G6 claim analysed: 61.21 per cent SiO2, 19.1 per cent Al2O3, 8.96 per cent K2O, 4.44 per cent Na2O, 1.3 per cent Fe2O3, 1.96 per cent CaO and 0.38 per cent MgO. The Al2O3 and K2O levels are within the range of commercial glass grade or ceramic material; the iron content however, is excessive for such material. Initial testing by Ore Sorters (North America) was unsuccessful in reducing the iron content to less than 0.1 per cent Fe2O3 by magnetic separation.

Michael Resources Ltd. carried out trenching, bulk sampling and 582 metres of diamond drilling in 1989 in order to assess the feldspar potential of the deposit. Drilling indicates a potential for 3.6 million tonnes of feldspar-bearing material at the proposed quarry site (Industrial Mineral File - Press Release, Michael Resources Ltd., October 5, 1989; Open File 1992-1).