scoria Definition

slag, dross, lapilli, basalt, metamorphic rock, lava, gravel, tephra, volcanic rock, dolerite, igneous rock, sandstone, limestone, calcine, anhydrite, halite, claystone, calcium sulphate, hornblende, greywacke, esker, kyanite, marl, bentonite, pyrites, evaporite, posthole, microfossil, eclogite, escarpments, pontil, kaolinite, hummocks, tufa, anorthosite, amphibolite, outwash, cherty, muskeg, clayey, lamellae, calcium oxide, ironbark, caliche, syrtis major, karri, argillaceous, roadbeds, azurite, firebrick, corrugation, sphagnum, mylonite, glacial boulder, fumaroles, albite, covellite, carbides, rills, granulates, spinifex, wollastonite, lithic, tremolite, tarmacadam, feldspar, laths, chrysocolla, schists, stalactite, slabbing, emery cloth, chippings, phyllosilicate, argillite, boulders, greisen, montmorillonite, massifs, colluvium, dissolver, quartzite, aluminosilicate, creosoted, leucoxene, huon pine, pipestone, rocks, cumulonimbus cloud, realgar, hogback, tussock, pyroxene, diabase, loess, douglas fir, dolomites, talus, phyllite, glasslike,