shale Synonyms

oil shale mudstone gas shale blackboards clastic rock tailings rocks mudrock stones claystone bituminous shale macadam briquette chalkboard sedimentary rock crushed rock Chippings bedded rock fine-grained sedimentary rock pelitic rock lithified clay laminated mudstone fissile rock silty shale carbonaceous shale clay-stone clay-containing clay-bearing calcilith black mineral nonclastic rock mechanical sedimentary rock stratified rock chemical sedimentary rock stone steatite slate diorite conglomerate coal clay chessboard chert chalk board bluestone blackboard basalt asbestos argillite