Rock texturesRocks have a variety of textures. Layered sandstone makes a gritty texture, Whilst coquina could possibly be tough with cemented shells sometimes manufacturing a pointy edge. Similarly, breccia, which has parts of other rocks which have been cemented jointly, and porphyry, which contains interlocking mineral crystals, are usually rough. https://sticksofrock67789.theblogfairy.com/35455356/rock-sticks-options