| Reference | {Deposit:: ROBJOHNS, NICOLA, 1990, RARE EARTHS, IN SPECIALTY METALS: METALS & MINERALS ANNUAL REVIEW - 1990, P. 78-80.}{Deposit:: MINING MAGAZINE, 1989, PANORAMA: V. 160, NO. 7, P. 6-7.}{Deposit:: INDUSTRIAL MINERALS, 1988, WORLD OF MINERALS: NO. 254, P. 8.}{Deposit:: INDUSTRIAL MINERALS, 1991, WORLD OF MINERALS: NO. 285, P. 8.}{Reserve-Resource:: ROBJOHNS, 1990; MINING MAGAZINE, 1989, FOR THE TOTAL ORE FIGURE.} |