Minerals identify

Know how to recognize them

Lignite

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A lignite stockpile (above) and a lignite briquette

Lignite, often referred to as brown coal, is a soft, brown, combustible formed from naturally compressed peat. It is considered the lowest rank due to its relatively low heat content It is mined all around the world and is used almost exclusively as a fuel for steam-electric power generation. Lignite is the most harmful coal to human health.

Identification