scoria, dirt, blacktop, asphalt, tarmacadam, culm, gravel, cinder track, macadam, chippings, firebrick, lava, hummocks, soot, tarpaper, sooty, unburnt, caliche, slag, rutty, sawdust, briquettes, spadeful, creosoted, woodpile, metalling, mounds, charcoal burner, ironwood tree, copal, moonscape, postholes, metamorphic rock, quicklime, clayey, dust, cumulus cloud, hardpan, paper toweling, briquet, roadbeds, claggy, glacial boulder, anhydrite, popple, betony, dung, meteoroids, sandstone, debris, coal, brushwood, slickrock, sandy, windrow, clapboards, crossties, char, wasteland, coquina, emery cloth, calcine, grass, glasslike, sumacs, applewood, joss paper, remnant, embers, midden, hilling, flagstones, carboniferous period, slag heap, hogback, protoplasm, shovelfuls, junkyard, retardent, cow dung, underfoot, quack grass, adobes, canyonlands, clinkers, ash, ashlar, granules, mudbath, silicates, sidings, brick, carboniferous, pinewood, corncobs, knolls, greasewood, almond cookie, muskeg, rimrock, brickyard, hillside, cinders, ashes, clinker, rock, rubble, mortar, floating, puddle, shingle, slug, snowball, stone, clods, strewn, muck, muddy, concreted, pebbled, rubbish, grassy, puddled, sand, stony, terraced, turfy, chalk, cindery

breeze block, cinder block, clinker block

fragment

clinker