Mudstone
A type of mud rock; a fine-grained sedimentary rock whose original constituents were clays or muds. Grain size is up to 0.0625 mm (0.0025 in), with individual grains too small to be distinguished without a microscope.
A type of mud rock; a fine-grained sedimentary rock whose original constituents were clays or muds. Grain size is up to 0.0625 mm (0.0025 in), with individual grains too small to be distinguished without a microscope.
