About this episode
本期《魅力中国》节目介绍了青田石的主要产地及历史地位。青田石是一种变质的中酸性火山岩，叫流纹岩质凝灰岩，主要矿物成分为叶蜡石，还有石英、绢云母、硅线石、绿帘石和一水硬铝石等。
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