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nature : CaCO3 commonly known as limestone, is a form of calcite as the main components of carbonate rocks, often with miscellaneous clay, silt and other material. Because of the impurities with different gray, gray, dark gray, light brown or light red color, etc.. The density of about 2.2-2.9. Sexual crisp, knife can be carved moving, dramatic drops diluted hydrochloric acid sparkling can also dissolve in the general category of organic acid-containing aqueous solution. By cause litter can be divided into limestone tablets, biological and chemical limestone such as limestone. As easy dissolution of limestone, limestone and development areas, often forming Shilin, karst caves and other terrain, scenery is beautiful. Limestone is used to bake lime, cement raw materials, smelting, steel flux, manufacture fertilizer, calcium carbide materials. Also widely used in sugar, ceramics, caustic soda, glass, printing industry. Also used for rubber, paint, etc. of fillings.
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