thortveitite

[ tawrt-vahy-tahyt, thawrt- ]
/ tɔrtˈvaɪ taɪt, θɔrt- /

noun

a scandium yttrium silicate mineral occurring in grayish-green orthorhombic crystals.

Origin of thortveitite

1910–15; < German Thortveitit, named after Olaus Thortveit, 20th-century Norwegian mineralogist; see -ite1