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Specimens of Lignite (Brown Coal), collected from Germany. Available in multiple sizes and supplied in a white card tray with an information label.
Brown coal (lignite) is a soft brown combustible sedimentary rock formed from naturally compressed peat. Stock Photo
Anthracite Coal Slide - Geology Superstore
Lignite - Wikipedia
lignite (brown coal) from Bergheim/ Germany isolated on white background Stock Photo - Alamy
Lignite Coal U.S. Geological Survey
Lignite (Brown Coal) - Geology Superstore
ROCKS Archives - Geology Superstore
Brown coal (lignite) - Stock Image - C008/4297 - Science Photo Library
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LIGNITE COAL Lignite, Coal, Chocolate cookie
Lignite - Wikipedia