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Box 4 The saltpetre industry and the development of small-scale mining Two typical examples of the period are the 1848 gold fever in California and nickel 10.000. 10-60. 1.000.000-. Indonesia. 77.000. Y. 300.000-500.000. Jamaica artisanal miner processes the mineral in ore crushers and then amalgamates it with
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29 Nov 2020 Small-scale gold mining activities and their mercury emissions in the activities and mercury exposure in Gorontalo Utara Regency, Indonesia workers crush ore, process sediment wastes, and pan for gold in rivers.
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