corundom vs corundum what difference

what is difference between corundom and corundum

English

Etymology

From Tamil குருந்தம் (kuruntam, “ruby, sapphire”) [early 18th century].

Pronunciation

• (UK, US) IPA^(key): /kəˈɹʌn.dəm/

Noun

corundum (countable and uncountable, plural corundums)

1. (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.

Derived terms

• carborundum

Translations

Further reading

• David Barthelmy (1997–2021), “Corundum”, in Webmineral Mineralogy Database.
• “corundum”, in Mindat.org‎^[1], Hudson Institute of Mineralogy, 2000–2021.

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