Travertine and limestone are examples of sedimentary stone. Granite is an example of igneous stone. Slate and marble are examples of metamorphic stone.
沉积石，石灰和石灰石，花岗岩是一种火成岩石木的例子。板岩和大理石变质石的例子。
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A metamorphic rock formed by alteration of limestone or dolomite, often irregularly colored by impurities, and used especially in architecture and sculpture.