Flagstone is very popular in landscaping, thanks to its durability, flatness, and color selection. Flagstone is typically sandstone, and it is made up of feldspar and quartz. The most common colors are tan, red and blue, but there are many others available as well.
Because flagstone is flat, and is split by layers, it is convenient for many uses, such as patios, walkways and even sometimes roofing. It is also popular to use in making headstones and other types of memorials, as well as countless other structures.