The Bairendaba Deposit Keshiketen District Inner Mongolia, China

摘要

Fine specimens of pyrrhotite with galena and fluorite as well as siderite and fluorapatite have recently come from a polymetallic mine in Inner Mongolia opened in 2010. Although the best pocket, discovered in 2019, was limited in size, it produced pyrrhotite crystals that rank among the world's finest, with sharp crystal form and brilliant metallic luster.