noun🔗ShareAny of several hard minerals of cubic symmetry that are mixed oxides of magnesium and aluminium and are used as gemstones of various colours."The jeweler displayed several rings featuring vibrant red spinels alongside the rubies. "mineralgeologymaterialChat with AIVocabulary GamePractice Reading
noun🔗ShareAny crystalline material, not necessarily an oxide, that possesses the same crystal structure as this mineral."Many synthetic gemstones, like those used in inexpensive jewelry, are manufactured with spinels due to their similar crystalline structure and durability. "materialmineralgeologychemistryChat with AIVocabulary GamePractice Reading
noun🔗ShareBleached yarn in making the linen tape called inkle; unwrought inkle."The weaver used the spinels to begin creating the linen inkle for a new loom project. "materialindustryChat with AIVocabulary GamePractice Reading
