单词 | magnetite |
释义 | Word Frequency magnetite(ˈmæɡnɪˌtaɪt) noun a black magnetic mineral, found in igneous and metamorphic rocks and as a separate deposit. It is a source of iron. Composition: iron oxide. Formula: Fe3O4. Crystal structure: cubic Derived forms magnetitic (ˌmæɡnɪˈtɪtɪk) adjective |
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