Henan Institute of Geological Survey

Mineral Chemistry and Genetic Constraints on Yiyuan Jade, Eastern Qinling Orogen, China

Yiyuan jade, a specific gem-quality jade variety in the East Qinling Orogen, occurs as lenticular and vein-shaped bodies hosted within the dolomite and biotite-quartz marble of the Neoproterozoic Meiyaogou Formation. Based on detailed petrological and mineralogical characterizati...