In the video, a person is seen holding a rock in their hand. The rock appears to be wet and has a shiny surface. The person is using a tool to scrape the surface of the rock, creating a thin layer of material. The tool is moved in a back and forth motion, and the person's hand is steady as they work. The rock's surface changes as the material is removed, becoming smoother and more uniform. The person continues to scrape the rock until they have removed a significant amount of material. The video provides a close-up view of the process, allowing the viewer to see the details of the rock's surface and the tool's movement.