There are primarily two genetic type sapphires in current jewelry market, one is of magma genesis and existed in alkali basalt, and the other is of contact metasomatic genesis caused by the intrusion and dolomitic marble.

  • 目前市场上蓝宝石主要有二种成因,即碱性玄武岩中岩浆成因和由侵入体与白云质大理岩接触交代成因。

  • 互联网摘选 2025-01-20 12:32:22

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