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Slate is a fine-grained,
foliated, homogeneous, metamorphic rock. Slate can be made
into roofing slates, also called roofing shingles. Slate
tiles are often used for interior and exterior flooring or
wall cladding. Tiles are installed and set on mortar and
grouted along the edges. Sealants are often used on tiles to
improve durability and appearance, increase stain
resistance, reduce efflorescence, and increase or reduce
surface smoothness. |