Definition of thortveitite
: a mineral (Sc,Y)2Si2O7 consisting of scandium yttrium silicate and occurring in slender grayish-green orthorhombic crystals (hardness 6–7, specific gravity 3.6)
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Origin and Etymology of thortveitite
German thortveitit, from Olaus Thortveit, 20th century Norwegian mineralogist + German -it -ite
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