👉 Rubbingstone is a type of coal or other fossil fuel that is used for heating and electricity generation. It is made from the burnt remains of ancient plants, such as trees, grasses, and shrubs, which have been buried underground over millions of years. The process of extracting and refining rubbings involves breaking down the remaining plant material into smaller pieces and then using a high-pressure gas to extract the carbon-rich compounds that give rubbingstone its distinctive chemical composition. Rubbingstones can