Rare Earth Minerals: Chemistry, Origin and Ore Deposits (The Mineralogical Society Series)
Both researchers in mineralogy and economic geology and  advanced undergraduate students will find much of interest in this  comprehensive overview of the geochemistry of this important group of  minerals. - Aslib Book Guide; ...strongly recommend this book to  anyone interested in RE minerals in general and their deposits in  particular; in fact, it can be regarded as essential reading. -  Mineralogical Magazine