1. Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou, China
2. China National Engineering Research Center for utilization of Industrial Minerals, Zhengzhou, China
3. Key Laboratory of Evaluation and Multipurpose Utilization of Polymetallic Ores Ministry of Natural Resources, Zhengzhou, China
4. Rock and Mineral Testing Center of Henan Province, Key Laboratory of Precious Metals Analysis and Exploration Technology of Ministry of Natural Resources, Zhengzhou, China