Granite gravel

Gravel can be classified into quartzite, granite, and carbonate based on their main components, building gravel, terrazzo gravel based on their uses, and natural gravel, machine-made gravel, natural pebbles, and machine-made pebbles based on their processing methods. Dolomite or dolomite is a carbonate rock with high calcium and magnesium content. It is mainly composed of dolomite, containing small amounts of calcite, clay minerals, flint, magnesite, and sometimes gypsum, lapis lazuli, barite, pyrite, and organic matter. The color of dolomite is generally gray white, similar in appearance to limestone. Transition type ores can be classified between limestone and dolomite based on the different proportions of calcite and dolomite. Commonly referred to as dolomite, it refers to relatively pure dolomite with a calcite content of less than 5%.