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FLEISCHER, MICHAEL, 1985: A summary of the variations in relative abundance of the lanthanides and yttrium in allanites and epidotes. Bull. Geol. Soc. Finland 57, Part 1—2, 151 — 155. Recalculation of 506 analyses of allanites and 53 analyses of epidotes has confirmed that these minerals preferentially concentrate the light lanthanides, but that the relative concentrations vary considerably with variation of the host rocks, with increasing concentrations of the light lanthanides in allanite from granitic pegmatites to granites to granodiorites to carbonatites to alkalic rocks to alkalic pegmatites. The status of the series allanite — allanite — (Y) and the possibility of the existence of allanite — (La) are discussed briefly.