Boron-rich silicate Formation include tourmaline-granulite, biotite-granulite, leptite and some other metamorphic rocks;
富硼硅酸盐岩组是一套电气石变粒岩、黑云变粒岩、浅粒岩等组成的变质岩系;
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Located in gold concentration area of eastern Liaoning Province, the Xiaotongjapuzi gold deposit is hosted by fine-grained leptite and marble of Paleoproterozoic metamorphosed sequence.