The wall rock of the mine is the third member of aqishan formation , which it is formed by the neutral - acidic volcanic rock and volcanic arenite of calcium - alkala series . the rock is mainly of andesite , quartz andesite , volcanic breccia agglomerate and volcanic breccia 矿床赋矿围岩为阿奇山组第三岩性段钙碱系列的中酸性火山岩-火山碎屑岩，主要岩性为安山岩、英安岩、火山角砾熔岩、火山角砾岩等。
