Rock texturesRocks have many various textures. Layered sandstone produces a gritty texture, While coquina might be tough with cemented shells sometimes making a pointy edge. Similarly, breccia, which incorporates pieces of other rocks which have been cemented with each other, and porphyry, which incorporates interlocking mineral crystals, are generally tough. https://sticks-of-rock45567.tokka-blog.com/36673107/getting-my-personalised-sweets-to-work