There are many varieties of natural stones, and the colors and textures of the stones are also different, so we will not introduce them separately here. This article only introduces the surface effect steps and methods of two commonly used stones for stone carving: white marble and granite.
First, imitation white marble effect
First, brush the sculpture with a white mixed paint, preferably with a spray gun, so that the surface is even and the color is saturated. When the paint is half dry, take the mica flakes and put them in the palm of your hand to rub them to the size of half a grain of rice, and blow them on the surface of the statue with your mouth, but only a very small amount. Then sprinkle quartz powder on the surface of the coarser parts of the sculpture, wipe off the floating sand with your hands after the paint is dry, and then sprinkle talcum powder on the smooth parts, and use gauze to gently rub and remove the gloss of the paint. The surface is dark and looks very much like white marble.
Second, imitation granite effect
If you want to consider what base color to use, such as red granite, you can use ochre gouache pigment, red and white mixed to the required color to brush the base color. If the color is pure, you can add a little black to reduce the purity and make the base color look calm. When it is slightly dry, use an old toothbrush or oil painting brush to dip in black, and use your index finger to make irregular color dots on the surface of the statue. The dots should not be too large. After it is dry, spray white and yellow dots. When dusting the color dots, the toothbrush or paintbrush can be far or close to the statue, and the size and density of the color dots are more natural. Because granite is rough, it is better to use gouache to imitate the surface calendering.
