
What is marble and how is it formed? Marble is a metamorphic stone, like granite or soapstone: it takes centuries to form its characteristic chemical composition. Thus, marble can only be found among the oldest areas of the Earth’s crust….
What is marble and how is it formed? Marble is a metamorphic stone, like granite or soapstone: it takes centuries to form its characteristic chemical composition. Thus, marble can only be found among the oldest areas of the Earth’s crust….
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