containing scratches is a mean of untypical of sedimentary stone
clastic_sedimentary_rock is sedimentary_rock. sedimentary_clay is soil. sedimentary_rock is stone. sedimentary_rock is not rock. sedimentary_rock is not stone. sedimentary is not rock. sedimentary_clay is not soil. clastic_sedimentary_rock is not sedimentary_rock. sedimentary_rock is rock. sedimentary is rock.