| 单词 | spinel rubies |
| 释义 | spinel /spi-nelˈ or spinˈəl/nounAny mineral of a group of aluminates, ferrates, and chromates of magnesium, iron, zinc, etc crystallizing in octahedra ORIGIN: Ital spinella spinel ruby noun Ruby spinel, a variety of magnesian spinel with the colour of a true ruby |
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