Quartz reef mining
Quartz reef mining is a type of gold mining in "reefs" ( veins) of quartz . Quartz is one of the most common minerals in the earth's crust, and most quartz veins do not carry gold, but those that have gold are avidly hunted by prospectors. In the shallow, oxidized zones of quartz reef deposits, the gold occurs in its metallic state, and is ...
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