Description Marble Chips are metamorphic rocks formed by the alteration of limestone by heat and pressure. In its pure form, marble is a white stone with a crystalline and sugary appearance, consisting of calcium carbonate CaCO3. Usually, marble contains other minerals, including quartz, graphite, pyrite, and iron oxides. It is used for its chemical properties in pharmaceuticals and agriculture. It is used for its optical properties in cosmetics, paint, and paper. They are used as Industrial Raw Materials with other industrial raw material products such as Silica Flour, Limestone, Aggregate, Quicklime, Talc, Volcanic Rock and Abrasives. Marble is usually a light-colored rock. It is one of the most effective acid-neutralization materials. Being composed of calcite, marble has a hardness of three on the Mohs hardness scale. As a result, marble is easy to carve, and that makes it useful for producing sculptures and ornamental objects. After being sanded with progressively finer abrasives, marble can be polished to a high luster. This allows attractive pieces of marble to be cut, polished, and used as floor tiles, architectural panels, facing stone, window sills, stair treads, columns, and many other pieces of decorative stone. Marble chips work best when used in paths and patios as a substitute for gravel. Although gravel often is used as inorganic mulch around plants, marble chip mulch's reflected sunlight can be too intense for plants in full-sun locations. Today, marble is quarried all around the world and is used to create giant monuments, it is used in building, even down to applications as simple as kitchen counter tops. Itâ??s classified as a metamorphic stone, which means that it has changed composition over time from one type of rock to another. Also used in: Building Stone Countertops and sinks Floor tiles Terrazzo marble chips mixed with concrete to form floors. Tomb Stone
Description Gravel is used in Water Filtration with water treatment Filtration products Silica Sand, Anthracite, Activated Carbon, Birm, Pumice and Garnet in portable water treatment, surface water treatment, swimming pool water treatment, R.O. reverse Osmosis treatment plant and wastewater treatment also in conventional water treatment filters. Filter Gravel is an extremely effective filter media because of its ability to hold back precipitates containing impurities. Filter sand size, angularity and hardness are the important filter sand characteristics to ensure proper filtering. In slow sand filters, the gravel is normally on the bottom layer and is used as channels for filtered water to make it to the outlet lines. Sand will often plug the holes in the outlet pipe and the gravel helps prevent that. The primary role of the gravel in the bio-sand filter is to prevent clogging of the PVC pipe with sand. The first layer is sufficiently deep to cover the inlet to the pipe and should be large enough to keep the openings in the filter bottom free for the flow of water out of the filter, and the upper layer fine enough that the overlying filter sand will not sink into its pores. Sand and gravel are used for road construction, for mixing with asphalt, as construction fill, and in the production of construction materials like concrete blocks, bricks, and pipes. It is also used to make roofing shingles, used on icy roads in the winter, for railroad ballast, and water filtration. The quarry is often where our gravel and other aggregates are excavated and where rocks such as sandstone and basalt are crushed down to size.
