Cerianite-(Ce), Lanthanite-(Nd)
Morro do Ferro, Poços de Caldas, Minas Gerais, Brazil
Quite a unique example of a product of lateritic weathering of a REE-rich carbonatite: light brown tiny and rather ugly microcrystals of cerianite-(Ce) - one of three currently confirmed mineral species with tetravalent cerium (compare stetindite-(Ce) and dyrnaesite-(La)) - with white coatings of Nd-dominant member of the lanthanite group. Prior ...
© Łukasz Kruszewski 2018