corundum

Example Sentences

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Corundum is important to the jewelry trade as ruby and sapphire.

From Textbooks • Feb. 14, 2019

For figures of other combinations see Calcite and Corundum.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

"I understood that the ruler, Silex Corundum, always went at the head of the troops when there was to be a battle, but there's a different person now."

From Through Space to Mars Or the Longest Journey on Record by Rockwood, Roy

Silex Corundum appeared to understand, and he indicated that the unfortunate man would receive attention.

From Through Space to Mars Or the Longest Journey on Record by Rockwood, Roy

Corundum occurs also at many localities in Montana, where the crystals are often of gem quality.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 4 "Coquelin" to "Costume" by Various