Ultramafic chromite deposits and related placers along a tributary to the Luan river.
Located near Gaotai village, about 35 km NNE of Chengde.
Ref.:
- Yu Zuxiang (1995): Gaotaiite - a new iridium telluride. Acta Mineralogica Sinica 15(1), 1-4 (in Chinese with English abstract).
- Yu Zuxiang (1995): Chengdeite - ordered natural iron-iridium alloy. Acta Geologica Sinica 69(3), 215-220 (in Chinese with English abstract).