cannel coal(n = noun.substance) Array - a bituminous coal that burns with a luminous flame; Array
is a kind of bituminous coal, soft coal

   A kind of mineral coal of a black color, sufficiently hard and solid to be cut and polished. It burns readily, with a clear, yellow flame, and on this account has been used as a substitute for candles. [1913 Webster]

anthracite coal, bituminous coal, bovey coal, brown coal, caking coal, canal coal, candle coal, coal, coal black, coal car, coal chute, coal gas, coal house, coal industry, coal mine, coal miner, coal miner's lung, coal oil, coal scuttle, coal seam, coal shovel, coal tar, coal tongs, coal works, hard coal, kennel coal, sea coal, soft coal, steam coal, wood coal