Rock texturesRocks have a number of textures. Layered sandstone provides a gritty texture, whereas coquina can be tough with cemented shells sometimes making a pointy edge. Likewise, breccia, which consists of items of other rocks that were cemented alongside one another, and porphyry, which includes interlocking mineral crystals, are typically https://sticksofrock67889.elbloglibre.com/36315631/sticks-of-rock-no-further-a-mystery