1497 in M. Oppenheim (1896) 97 Colepoudre..iij lasts iiij barelles.
1683 J. Pettus tr. L. Ercker xii. 251 in iii They take a Test which is made moist, and make a little hearth in it of Coal Powder, mixt with clay, having a flat smooth hole cut out.
1880 18 Sept. 5/4 The fine coal powder which pervades the mine, and which, when suddenly kindled by the exploding gas, burns the miners to death.
1994 102 159 Limiting the burning of raw coal powder.