Chalk is medium-sized stone that combines chiseled looks with the structured simplicity and raw beauty of cut limestone. The strength and appeal of chalk lies in its versatility; working admirably in a variety of commercial and residential applications. It presents a perfect balance between symmetry and motion. Whether the choice is the darker hues of Apache or the light, airy look of Brazos, the effect is the same: an earthy feel of informal integrity.     chalk ledgestone fieldstone castlestone chisel river rock stackstone red brick