Common Health Problems Faced by Miners and Quarry
2019-10-11 · New Zealand’s mined natural resources include limestone, serpentine, salt, aggregate, clay, pumice, dolomite, gold, silver, bentonite and coal. The variety of minerals is a result of tectonic activity, with the country located on the edge of the Ring of Fire. New Zealand has 18 open cast coalfields in Waikato, Otago, Southland and the West Coast.