Meaning of spinel
Pronunciation: (spi-nel', spin'l), [key]
- any of a group of minerals composed principally of oxides of magnesium, aluminum, iron, manganese, chromium, etc., characterized by their hardness and octahedral crystals.
- a mineral of this group, essentially magnesium aluminate, MgAlO, some varieties being used as gems.
- spinel (Thesaurus)