Chalcopyrite ore types, from huge masses as at Timmins, Ontario, to irregular veins and disseminations associated with granitic to dioritic intrusives as in the porphyry copper deposits of Broken Hill, the American cordillera and the Andes. The largest deposit of nearly pure chalcopyrite ever discovered in Canada was at the southern end of the Temagami Greenstone Belt where Copperfields Mine extracted the high-grade copper. Chalcopyrite is present in the supergiant Olympic Dam Cu-Au-U deposit in South Australia. Chalcopyrite may also be found in coal seams associated with pyrite nodules, and as disseminations in carbonate sedimentary rocks. Crystallographically the structure of chalcopyrite
Mining in North Korea handle 10 million tons of zinc ore. Conventional flotation methods are adopted to extract lead and zinc concentrates. Other products from the mine are sphalerite, chalcopyrite, and galena. In gold alone the nation is estimated to hold around 2,000 metric tonnes of reserves, which at a gold value of $1,200/ounce, would give a total worth of $84.6 billion. Other available resources include iron, with 5 billion tonnes of 50% iron-content ore in reserve, nickel, with 36,000 tonnes of the pure metal, and zinc metal, with around 21,100,000 tonnes. The Daebong Mine, located on the border of Gapsan and Woonheung in