The Chilean mill is a machine used on gold fields, still used today in small-scale mining, it was more common in earlier period of gold mining. The machine was composed of two rotating wheels that would revolve over a pan filled with gold-bearing rocks.
The Chilean mill is a machine used on gold fields, still used today in small-scale mining, it was more common in earlier period of gold mining. The machine was composed of two rotating wheels that would revolve over a pan filled with gold-bearing rocks.
Source: Wikipedia "Chilean mill" · CC BY-SA 4.0
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