Bituminous coal and anthracite coal have differences in appearance and combustion performance. 1. Appearance: The color of bituminous coal is black or brown-black, with obvious strip-like structure and obvious texture on the surface. Anthracite is black and gray-black in color, hard in texture, and has no obvious texture on the surface.

2. Combustion performance: Bituminous coal has good combustion performance and high calorific value. It will produce a lot of smoke and dust when burned. Anthracite has poor combustion performance, low calorific value, and basically no smoke and dust when burning.