a dark green to black, hard, radioactive mineral, beryllium iron yttrium silicate, BeFeYSiO, that is an ore of various rare-earth elements
Origin of gadoliniteGerman gadolinit, after J. Gadolin (1760-1852), Finnish chemist who isolated it
A dark green or greenish-black silicate mineral, Be2FeY2Si2O10, containing several of the rare-earth elements in combination with iron.
Origin of gadoliniteAfter Johan Gadolin (1760-1852), Finnish chemist
After the Finnish chemist Johan Gadolin (1760-1852), + -ite.