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Gold mining - Wikipedia

Gold mining is the resource extraction of gold by mining. As of 2016, the world's largest gold producer was China with 463.7 ... Romans used hydraulic mining methods…

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Sluicing | mining | Britannica.com

In placer mining. In sluicing or hydraulicking methods, a slightly sloping wooden trough called a box sluice, or a ditch cut in hard gravel or rock called a ground sluice, is used as a channel along which gold-bearing gravel is carried by a stream of water.

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The Environmental Disaster That is the Gold Industry ...

The pledge was launched in 2004 by the environmental group Earthworks, which has asked retail companies not to carry gold that was produced through environmentally and socially destructive mining practices. Eight of the ten largest jewelry retailers in the United States have now made the pledge ...

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Gold mining - Wikipedia

Gold mining is the resource extraction of gold by mining. As of 2016, the world's largest gold producer was China with 463.7 ... Romans used hydraulic mining methods, ...

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