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Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.Loading...
gneiss. Crushed quartzite is used in road construction and for railway ballast. It is used to make roofing tiles, stairs, and flooring.quartzite. building material such as flooring, ornamental stones, gravestones, facing stones on buildings and work surfaces
marble.Most marble is used in the construction industry. Crushed marble is used to build roads, foundations of buildings,
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gneiss. Crushed quartzite is used in road construction and for railway ballast. It is used to make roofing tiles, stairs, and flooring.quartzite. building material such as flooring, ornamental stones, gravestones, facing stones on buildings and work surfaces
marble.Most marble is used in the construction industry. Crushed marble is used to build roads, foundations of buildings,
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