Yangzhumingite, Aegirine, Thorite
East Mine, Bayan Obo deposit, Bayan Obo, Bayan Obo mining district, Baotou City, Inner Mongolia, China
Bronze plates of this "Tainiolite" in alkaline metasomatic rock had turned out new mica Yangzhumingite. Its composition is K1.03(Mg2.29Li0.21Fe0.05Mn0.03)2.59[Si2O5]2F2.00 (Li content was calculated according to electric charge balance). ...
© Pavel M. Kartashov collection & photo