what is difference between corundom and corundum
From Tamil குருந்தம் (kuruntam, “ruby, sapphire”) [early 18th century].
- (UK, US) IPA(key): /kəˈɹʌn.dəm/
corundum (countable and uncountable, plural corundums)
- (mineralogy) An extremely hard mineral, a form of aluminum oxide with the chemical formula Al2O3, that occurs in the form of the gemstones sapphire and ruby; it is used as an abrasive.
- David Barthelmy (1997–2021), “Corundum”, in Webmineral Mineralogy Database.
- “corundum”, in Mindat.org, Hudson Institute of Mineralogy, 2000–2021.
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