Stone coal, also known as "bituminous coal" or "black coal," is a type of coal that falls within the category of energy  products.

It is a sedimentary rock that forms from the compression and partial decomposition of plant material over millions of years. Stone coal is a significant source of energy and is widely used for electricity generation, industrial processes, and heating.

Stone coal is characterized by its relatively high carbon content, making it a more energy-dense fuel compared to other types of coal, such as lignite or sub-bituminous coal. It contains a higher percentage of volatile matter, which means it burns with a hotter flame and releases more energy when combusted.

Key properties of stone coal include its high energy content, low moisture content, and moderate sulfur content. These properties make it an attractive choice for various energy applications. The specific properties and quality of stone coal can vary depending on its geographical location and the geological processes that formed it.

In the energy sector, stone coal plays a vital role in providing electricity to power grids and supplying energy for industrial processes, including steel production, cement manufacturing, and other heavy industries. It is also commonly used for residential and commercial heating purposes.

Despite its energy advantages, stone coal also has environmental drawbacks, as its combustion emits greenhouse gases, sulfur dioxide, and other pollutants. Therefore, the use of stone coal in energy production is often subject to environmental regulations and measures to mitigate its environmental impact, such as employing advanced technologies for emissions control.

Overall, stone coal is a significant contributor to the global energy mix, and its utilization is influenced by factors such as energy demand, availability, environmental concerns, and the development of alternative and cleaner energy sources.