How to polish and polish stone by hand

1. Grind the surface of the stone with a steel file. After peeling off the skin, observe the shape of the stone, roughly outline the shape you want to polish, and continue to polish the corners with a steel file.

2. After the initial shape is polished, carefully polish the epidermis with 600-mesh sandpaper, and at the same time, wet the stones and sand with water and wet them to a round shape.

3. Use 1000 mesh sandpaper to polish until it is smooth and round, and all skins are polished clean.

4. Use 2000-mesh, 3000-mesh and 5000-mesh sandpaper to grind slowly through wet grinding until it is smooth.

5. Wrap the stone with cotton cloth and rub it back and forth in circles.