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how is gold extracted from a mine

The mining of alluvial deposits and, later, lode or vein deposits required crushing prior to gold extraction, and this consumed immense amounts of manpower by ad , up to , slaves were employed in gold mining in spain the advent of christianity somewhat tempered the demand for gold until about the th century

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Praha is a leader in the mining industry, mainly with sand and gravel equipment, milling equipment, mineral processing equipment, building materials equipment, etc..

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