Sandstones are clastic sedimentary rocks, usually fine-grained and highly cemented. The presence of clasts and mineralogy (quartz, feldspars) makes this set of ornamental rocks not support polished or flamed finishes, usually appearing as clean cut, carved with a chisel, or as much bushhammered. The nature of its cement (siliceous, ferruginous, carbonated) and its clasts, determine the coloring and visual motifs Rock.
