Hello, it&;s dolomite with different components, a carbonate rock with dolomite [CAMG (CO3) 2] as the main component. Dolomite is often mixed with some impurities such as calcite, gypsum and clay minerals due to the influence of different geological processes and environments during its formation. Dolomite is distributed in more than 20 provinces, autonomous regions and municipalities directly under the central government in China. It is a nonmetallic mineral with a wide range of uses. Limestone is a sedimentary rock, which belongs to petrology. The main components are: calcium carbonate or magnesium carbonate (such as calcite), etc. 、