1850, in the meaning defined above
French covelline, from Niccolò Covelli †1829 Italian chemist
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Cite this Entry
“Covellite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/covellite. Accessed 30 Jun. 2022.
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Britannica.com: Encyclopedia article about covellite
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