sedimentary rocks often have different colored layers
clastic_sedimentary_rock is sedimentary_rock. sandstone is clastic_sedimentary_rock. sedimentary_rock is stone. sedimentary_rock is not rock. sedimentary_rock is not stone. sedimentary is not rock. clastic_sedimentary_rock is not sedimentary_rock. sedimentary_rock is rock. shale is clastic_sedimentary_rock. sedimentary is rock.