又稱云石，是重結晶的石灰巖，主要成分是CaCO₃。石灰巖在高溫高壓下變軟，并在所含礦物質發生變化時重新結晶形成大理石
Also called marble, recrystallization is limestone, main component optimization is Limestone at high temperature is high
Under pressure to soften and in mineral changes to form marble crystallization
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