Rock texturesRocks have many different textures. Layered sandstone produces a gritty texture, whereas coquina could be rough with cemented shells from time to time making a sharp edge. Also, breccia, which consists of items of other rocks which were cemented together, and porphyry, which is made up of interlocking mineral https://personalisedsweets13456.blogtov.com/16860247/sticks-of-rock-no-further-a-mystery