The road-accessible Poly 2 manganese prospect is location approximately 1.5 km north of the Chemainus River in a partly logged area on southern Vancouver Island, British Columbia. There is an expected increase in demand for manganese due to its use in lithium-ion batteries for electric vehicles.
- Mineralization is reported to comprise manganese oxides in quartz veins and manganese-rich chert or greenish grey to pink rhodonite in close proximity to the vein. The quartz vein is up to 0.7 metres in width and is clear to whitish with a greasy luster. Up to 10 per cent manganese oxide minerals, including pyrolusite and psilomelane.
- There is also gold and silver mineralization. In 1985 and 1986, E. Specogna completed programs of prospecting, rock sampling and four diamond drill holes, totalling 20.7 metres. Trench and rock pit samples yielded values up to 1.1 g/t gold and 11.3 g/tne silver.
- In 1987, Canamin Resources completed a program of geological mapping and geochemical sampling. Samples of the vein assayed 1.82% manganese across 0.7 metres and adjacent manganiferous wall-rock with quartz veinlets sampled on either side of the vein, assayed 9.24% and 7.16% manganese.
- In 1987, consulting geologists Barbara Thomae, B.Sc., and Greg Hawkins, M.Sc, P.Geol., recommended further prospecting for rhodonite and manganese oxide occurrences.