单词 | garnet |
释义 | garnet [`gär·nǝt] MINERALOGY A generic name for a group of mineral silicates that are isometric in crystallization and have the general chemical formula A3B2(SiO4)3, where A is Fe2+, Mn2+, Mg, or Ca, and B is Al, Fe3+, Cr3+, or Ti3+; used as a gemstone and as an abrasive. |
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