Abstract The crystal chemistry and structure of the rare earth element phosphates, monazite-(Ce), Ce(PO 4 ), xenotime-(Y), Y(PO as well arsenates, gasparite-(Ce), Ce(AsO chernovite-(Y), Y(AsO from hydrothermal quartz-bearing fissures, related to pegmatites overprinted by amphibolite facies, cropping out at Mt. Cervandone, Western Alps, Piedmont, Italy, have been investigated means electron micr...
