alunite

noun
al·​u·​nite | \ ˈal-yə-ˌnīt How to pronounce alunite (audio) , ˈa-lə- \

Definition of alunite

: a mineral that consists of a hydrous potassium aluminum sulfate and occurs in massive form or in rhombohedral crystals

First Known Use of alunite

1821, in the meaning defined above

History and Etymology for alunite

French, from alun alum

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The first known use of alunite was in 1821

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Cite this Entry

“Alunite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alunite. Accessed 25 Jan. 2021.

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Britannica.com: Encyclopedia article about alunite

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