| NOUN | substance | cordierite | a blue mineral of magnesium and iron and aluminum and silicon and oxygen |
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| Meaning | A blue mineral of magnesium and iron and aluminum and silicon and oxygen; often used as a gemstone. | |
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| Narrower | water sapphire | A deep blue cordierite often used as a gemstone |
| Broader | mineral | Solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
| Spanish | cordierita | |
| Catalan | cordierita | |
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