Pengkuarian batu, pasir dan tanah liat

This activity involves the extraction and processing of natural stone materials used in construction and monumental purposes. It includes the quarrying, rough trimming, and sawing of stones like marble, granite, and sandstone, which are then shaped for use in buildings, monuments, and other structures.

This activity involves the extraction of limestone from quarries, followed by processes such as crushing and breaking to produce various sizes of limestone products. These products are typically used in construction, agriculture, and other industrial applications.

This activity involves the extraction of gypsum and anhydrite, which are naturally occurring minerals used primarily in the production of plaster, wallboard, and cement. The mining process includes the removal of these minerals from the earth and may involve various techniques such as open-pit or underground mining.

This activity involves the extraction of chalk and uncalcined dolomite from the earth. Chalk is a soft, white, porous sedimentary rock, while uncalcined dolomite is a type of limestone that contains magnesium carbonate. Both materials are primarily used in construction, agriculture, and various industrial processes.

This activity involves the extraction and dredging of industrial sand, which is used in various manufacturing processes, as well as sand and gravel that are primarily utilized in construction. It encompasses operations that remove these materials from natural deposits, including riverbeds and quarries.

This activity involves the breaking and crushing of stone and gravel into smaller pieces for use in construction and other applications. It includes the processing of various types of rock and gravel materials to produce aggregates that are suitable for building and infrastructure projects.

This activity involves the extraction of sand from quarries, which may include various types of sand such as silica sand. It encompasses the processes of mining, processing, and preparing sand for use in construction and other industries.

This activity involves the extraction of clays, including refractory clays and kaolin, which are used in various industrial applications. Refractory clays are specifically designed to withstand high temperatures, while kaolin is primarily used in ceramics, paper, and other products.

This activity involves the extraction and processing of granite from quarries. It includes operations such as crushing and breaking granite into smaller pieces for use in construction and other applications.