kw.\*:("YTTROFLUORITE-YTTROCERITE")
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YTTROFLUORITE-YTTROCERITE-CERFLUORITE IN NORWEGIAN PEGMATITES.SVERDRUP TL.1968; NORSK GEOL. T.; NOR; 1968, VOL. 48, NUM. 0004, P. 245 A 252Miscellaneous