| NOUN | substance | thortveitite | a mineral consisting of scandium yttrium silicate |
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| Meaning | A mineral consisting of scandium yttrium silicate; a source of scandium. | |
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| Broader | mineral | Solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
| Substances | scandium, Sc, atomic number 21 | A white trivalent metallic element |
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