释义 |
thort·veit·ite \(ˈ)tȯ(r)t|vīˌtīt, (ˈ)thȯ-\ noun (-s) Etymology: German thortveitit, from Olaus Thortveit, 20th century Norwegian mineralogist + German -it -ite : 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) |