New York Bluestone is a natural cleft sandstone used for patios, walkways and flooring. Strong and durable, it is available in a natural irregular shaped flagging or sawed in dimensional tiles (squares and rectangles). Quarried in both New York and Pennsylvania, Bluestone takes its name from the deep blue color of the original stone layers quarried. Bluestone is not limited to just the blue color, but comes in a mixture of a variety of colors from green, gray, reddish brown and lilac with striations of gold, purple and brown. We also offer a “Clear Bluestone” that is selected for color. It consists of greens, greys & blues.