sea coal

from The Century Dictionary.

• noun Fossil coal, or coal dug from the earth: so called because it was first brought to London from Newcastle by sea.
• noun Soft or flaming bituminous coal: so named to distinguish it from the anthracites.

from the GNU version of the Collaborative International Dictionary of English.

• Coal brought by sea; -- a name by which mineral coal was formerly designated in the south of England, in distinction from charcoal, which was brought by land.
• (Founding) facing consisting of pulverized bituminous coal.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun obsolete, UK mineral coal (brought by sea), distinguished from charcoal (which was then brought by land)

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun pulverized bituminous coal; used as a foundry facing