spinelle
/spi'nel,'spinәl/
📖 中文释义
- n. [矿]尖晶石
📘 English Definition（英文释义）
- n. A mineral occuring in octahedrons of great hardness and
- various colors, as red, green, blue, brown, and black, the red variety
- being the gem spinel ruby. It consist essentially of alumina and
- magnesia, but commonly contains iron and sometimes also chromium.