Barium: Boloníumálmur

Apart from "þungjörðungur", derived from "þungjörð" ("heavy earth" or "baria", BaO), we can name the metal after the old name of barite (BaSO4): "bologna stone". Many element are named after countries or place-names, so we could call Barium "bologne-metal", Boloníumálmur ("Boloníia" is the form of the city's name use in Old Icelandic texts)