Ultramafic chromite deposits along a tributary to the Luan river.
Ref.:
- Yu Zuxiang (1995): Mayingite - a new iridium bismuth-telluride. Acta Mineralogica Sinica 15(1), 5-8 (in Chinese with English abstract).
- Yu Zuxiang (1998): Telluromayingite Ir(Te,Bi)2 - a new variety of mayingite. Acta Mineralogica Sinica 18(2), 134-137 (in Chinese with English abstract).