corundum in a sentence
n.
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Definition
Corundum is a hard mineral composed of aluminum oxide, often occurring in varieties such as rubies and sapphires, which are differentiated by color.
Sample Sentences
- Corundum is the mineral form of aluminum oxide and is known for its hardness.
- Rubies and sapphires are both varieties of corundum, distinguished by their color.
- In industrial applications, corundum is often used as an abrasive due to its durability.
- The clear and flawless crystals of corundum can be found in various geological environments.
- Historically, corundum has been prized not only for its beauty but also for its utility in tools.