Dry blowing
Encyclopedia
Dry blowing is a method to extract gold
Gold
Gold is a chemical element with the symbol Au and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a...

from dry soil without the use of water.

One method is to pour dry soil from a height into a pan, the wind would blow away finer dust allowing gold particles to fall into the pan.
Alternatively, the prospector would use one pan and throw dirt up into the air and catch it.
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