Orpiment from Songpan Co., Ngawa Autonomous Prefecture (Aba Autonomous Prefecture), Sichuan, China
China | |
| Xianxiao Xiong (2000): Acta Geologica Sinica (English Edition) 74(3), 618-622 |
Peters, S.G. (2002): USGS Open-File Report 02-131. | |
Peters, S.G. (2002): USGS Open-File Report 02-131. | |
Peters, S.G. (2002): USGS Open-File Report 02-131. |