The JAB claims were located over the first recorded magnesite discovery in the area. The magnesite forms a bare knoll about fifteen metres high and about 122 metres long by thirty to fifty metres wide. Most of the knoll consists of a medium to coarse-grained structure- less, pale grey to white rock. Thin layers of magnesite separated by slickensided films of talc and serpentine occur at the southeast corner of the knoll. Visible impurities include patches of coarse, white dolomite, talc-serpentine films, discontinuous stringers of quartz and chalcedony and scattered crystals and small lenses of pyrite. Chip sampling over the top of the knoll contained 44.02 per cent MgO, 0.47 per cent CaO, 43.82 per cent CO2, 8.99 per cent SiO2 and 0.99 per cent Fe (Total).