1 Sentences With "channel coal"

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Torbanite, also known as boghead coal or channel coal, is a variety of fine- grained black oil shale. It usually occurs as lenticular masses, often associated with deposits of Permian coals. Torbanite is classified as lacustrine type oil shale. Torbanite is named after Torbane Hill near Bathgate in Scotland, its main location of occurrence.