Rock texturesRocks have many different textures. Layered sandstone creates a gritty texture, Whilst coquina can be tough with cemented shells at times making a sharp edge. Furthermore, breccia, which incorporates parts of other rocks which were cemented alongside one another, and porphyry, which includes interlocking mineral crystals, are generally rough. https://sticksofrock89001.popup-blog.com/35229250/sticks-of-rock-no-further-a-mystery