Create a photo that depicts realistic bituminous coal. Bituminous coal is formed through a process of high heat and pressure, and is generally black and shiny. Reflecting this, please embody the appearance of bituminous coal in glossy black. Select the deep strata, the environment where bituminous coal is found, as the background, and capture the shape of bituminous coal piled up in layers. Also, carefully express the texture and gloss on the surface of bituminous coal to create a realistic feel. Adjust lighting and shadows appropriately to highlight the texture and shape of the bituminous coal. By doing this, you can recreate the realistic and vivid appearance of bituminous coal in your photos. --s 250