Abstract: One-coating and one-package type coating material in which wall surfaces or the like of a building are finished into natural granite tone are disclosed. A group of flexible resin flakes having more than three kinds of colors and a binder which is turned to be substantially transparent when dried or set are mixed together. The resin flakes have an irregular shape and a random size, the thickness is uneven within one piece and every one piece, having a peripheral end which becomes continuously thin toward the outer edge, and have a color tone similar to the components of granite. Since the peripheral end of the resin flakes is continuously thin toward the outer edge, when coated, there is no unnatural difference in level in the superposed portions of resin flakes. Further, an external appearance and a quality sense extremely close to natural granite are obtained due to the unevenness of thickness of resin flakes.