siltstone Synonyms

alabaster oil shale clastic rock rock with very fine grains bedded rock fine-grained sedimentary rock clay-stone soft stone siliceous shale calcareous rock fine-grained sandstone argillaceous sandstone fine sandstone argillaceous chert calcareous shale carbonaceous shale fine-grained silt argillaceous silt coconinoite arkose andesite argillite basalt bluestone breccia brickwork brownstone chalk chert firestone greensand marlstone psammite sandstone bedrock arenaceous rock arenite carbonate rock