Torbanite
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Torbanite, also known historically as boghead coal or kerosene shale, is a variety of fine-grained black oil shale. It usually occurs as lenticular masses, often associated with deposits of Permian co
Photomicrograph of torbanite, from Bathgate, Scotland
Cannel coal
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Cannel coal or candle coal is a type of bituminous coal, also classified as terrestrial type oil shale. Due to its physical morphology and low mineral content cannel coal is considered to be coal but
Torbanite
…occurs as lenticular masses, often associated with deposits of Permian coals. Torbanite is classified as lacustrine type oil shale. A similar mineral, cannel coal, is classified as being a terrestrial form of oil shale, not a lacustrine type. Torbanite is named after Torbane Hill near Bathgate in West Lothian…
Cannel coal from the Pennsylvanian of NE Ohio
Cannel coal beads
Sculpture of a boot in Cannel coal in the collection of the Black Country Living Museum
Coal anthracite