. . "Cannel-boghead-coal"@en . . "Cannel-boghead-coal"@en . . "Cannel-boghead-coal - A type of sapropelic-coal. It is a transitional stage between cannel-coal and boghead-coal in which alginite dominates over miospores. British Geological Survey Research Report RR/99/03, section 6.2 and fig. 10."@en . "stable"@en . "CBCOAL"@en .