ABSTRACT
The term texture refers to the pattern formed within a sedimentary rock by the constituting grains. This can best be studied under a microscope. In sedimentary rocks of mechanical origin the framework grains are joined together, either by finer fragmental particles or by chemically precipitated cement. The former is called matrix and the latter, cement. The pattern formed by framework grains, matrix and cement is called clastic texture. Sandstones show this kind of texture.
