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Shale, because of its high clay mineral content, is used in the manufacture of brick. Granite is used for countertops and building facings. Basalt has been used in construction of buildings, pavers, and countertops as well.
Shale can be used as a filler in paints, plastics, and roofing cements, and ground shale can be used as a replacement for clay in the manufacture of bricks.