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The majority of the ore is sulfidicrefractory consisting primarily of homogenously distributed extremely small gold particles, generally ranging in size from colloidal to approximately 50Å, hosted primarily as a solid solution within the structural lattice of arsenian pyrite rims which surround some preore pyrite crystals (Arehart et al., 1993).get price
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The ores are more likely to be spotted than otherwise, that is, gold occurs in small pockets rather than with a uniform distribution throughout the entire vein. The vast majority of gold deposits within the United States occur in true fissure veins, and while these were historically the
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gold mining in primary secondary and tertiary « Mining. the cityregion review 2010 GCRO Gauteng CityRegion Observatory. Despite its relatively small size the primary sector remains significant in Gauteng, Similarly, gold mining and its associated industrial activity have propelled the growth of the In the tertiary sector, Gauteng's finances and business service sector It then fell back