Rare earth elements in coal and coal fly ash

Online link https://pubs.usgs.gov/fs/2019/3048/fs20193048.pdf
Description Explains the occurrence of rare earth elements in coal and coal fly ash, with notes on the potential for recovery of these elements as resources.
Originators Scott, Clinton T. and Kolker, Allan
Publication U.S. Geological Survey Fact Sheet 2019-3048

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