rhombohedronrhomboid current ripplerhomboid ripple markrhomboidal lattice strucrhombolithrhonite or rhoenite or rhoeniterhopaloid septumrhoundrhumb linerhyacoliterhynchocephaliarhyncholiterhynchonelloidrhyoandesiterhyocrystalrhyodaciterhyodiabasicrhyoliterhythmic layeringrhythmic sedimentationrhythmic unitrhythmiterhytidomeria coastribrib and furrowriband jasper or jasper or jasperribbedribbed barribbed boltribbed flatribbed floorribbed moraineribbed pannelribbed slabribbeiteribble or ripple till or ripple tillribbonribbon bandingribbon diagramribbon jasper or jasper or jasperribbon reefribbon rockrice fieldrich concreterichelliterichelsdorfiterichetiterichmondianrichter scale
