THULIUM
Source: 567
Thu″li‐um (?), n. [[NL. See Thule.]] (Chem.) A rare metallic element of uncertain properties and identity, said to have been found in the mineral gadolinite.
Source: 567
Thu″li‐um (?), n. [[NL. See Thule.]] (Chem.) A rare metallic element of uncertain properties and identity, said to have been found in the mineral gadolinite.