Lignite: Mineral information, data and localities.

A consolidated, dull, soft brown to black coal with visible plant fragments set in a finer grained matrix. 60-75% carbon content dry ash free, 46-63%

RS-05 Coal Resources of the Denver and Cheyenne Basins, Colorado - Colorado Geological Survey

Sedimentary rock: Mineral information, data and localities.

Ward's® Coal (Lignite)

Alum Group: Mineral information, data and localities.

Lignite - an overview

Orpiment: Mineral information, data and localities.

Location of main hard coal and lignite mining areas in Poland.

Lot 232 Lignite pit (Coal Mine No. 4), Carbondale, Irish Hill Mining District, Amador County, California, USA

Amethyst: Mineral information, data and localities.

Svanbergite: Mineral information, data and localities.

Branchite: Mineral information, data and localities.

Lignite