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air-sparaging  n.— «Drilling began in 1995 for wells to be used in a process, called air-sparaging, to clean out the coal tar contaminants.» —“Coal-tar cleanup took 20 years” by Mark Simonson Daily Star (Oneonta...

miner’s moss

miner’s moss  n.— «Metal grids and perforations weed out the rocks and large chunks of dirt, while black plastic ridges capture many of the heavy gold flakes. The runoff flows onto a jumble of what looks like plastic vermicelli. The so...

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