Chalk and dolomite

cpc code 16330 covers the extraction and processing of chalk and dolomite, two important industrial minerals with a wide range of applications. Chalk is a soft, white, porous sedimentary rock composed primarily of the mineral calcite, while dolomite is a type of limestone containing the mineral dolomite. These materials are essential raw materials for various industries, including construction, agriculture, and manufacturing, making them an integral part of the broader economy.

The production of chalk and dolomite typically involves quarrying or mining the raw materials from natural deposits, followed by crushing, screening, and sometimes further processing to meet specific industry requirements. Chalk is often extracted from chalk cliffs or quarries, while dolomite is mined from dolomite rock formations. The extracted materials may then undergo additional steps such as washing, sorting, and grading to ensure consistent quality and size distribution.

The main inputs required for the chalk and dolomite industry include the natural deposits of these minerals, as well as the necessary equipment and machinery for extraction, processing, and transportation. This includes excavation equipment, crushers, screens, and other processing equipment. Additionally, energy sources, such as electricity or fuel, are required to power the production facilities.

The primary outputs of the chalk and dolomite industry are the processed and refined materials, which are then used as inputs for a variety of other industries. Chalk and dolomite find applications in the production of 16110 Cement, 16120 Lime and plaster, 20120 Fertilizers and nitrogen compounds, and 23100 Glass and glass products, among others. The specific applications and end-uses of chalk and dolomite can vary depending on their chemical composition and physical properties.