- cortázar, julio,
- cortés, hernando,
Origin of corundum
Examples from the Web for corundum
Copper ore is found in many tracts throughout India, plumbago in Madras, and corundum in southern India.
Corundum is a mineral similar to emery, and corundum wheels are made and used in the same manner as emery wheels.Modern Machine-Shop Practice, Volumes I and II|Joshua Rose
Canadian corundum occurs as a constituent of syenite and nepheline-syenite in Lower Ontario.The Economic Aspect of Geology|C. K. Leith
It is interesting to note that the corundum gems undergo marked change in color under the influence of radium.A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public|Frank Bertram Wade
While Corundum of all colors is used for gems, it is only that which is transparent which can be so employed.
Word Origin for corundum
"very hard mineral," 1728, from Anglo-Indian, from Tamil kurundam "ruby sapphire" (Sanskrit kuruvinda), of unknown origin.