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China | |
| Pingyi Wan (2002): China's Manganese Industry 20(3), 1-6 |
| Pingyi Wan (2002): China's Manganese Industry 20(3), 1-6 |
- Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
| [Agate var. Onyx] Zhimin Cao (1991): Journal of Chengdu College of Technology 18(4), 26-36 |
| Bo Yuan, Jingwen Mao, Xinghu Yan, Yue Wu, Feng Zhang, and Liangliang Zhao (2014): Acta Petrologica Sinica 30(1), 209-220 |
| Liangju Zhang, Can Rao, Changlong Zhang, Qingfeng Ruan, Wei Lei, Baoli Liao, and Tao He (2008): Journal of Guilin University of Technology 28(3), 289-294 |
| www.ruegg.co.uk (n.d.) http://www.ruegg.co.uk/Final%20Admission%20Document%20CCG.pdf |
- Ngawa Autonomous Prefecture (Aba Autonomous Prefecture)
| Chengzhong Zhang and Zengda Liu (2006): China's Manganese Industry 24(4), 46-49 |
| Xianxiao Xiong (2000): Acta Geologica Sinica (English Edition) 74(3), 618-622 |
- Zoigê Co. (Ruo'ergai Co.)
| Su Sun (1993): Gold Science and Technology 1(2), 4-10 |
| Lin Fangcheng and Pan Guitang (2006): Science in China, Series D (Earth Sciences), 49(11), 1135-1146 Fangcheng Lin (2005): Mineral Deposits 24(2), 122-133 |