plural -s
: an ocher-yellow or brown mineral KFe3(SO4)2(OH)6 consisting of basic sulfate of potassium and iron and occurring in minute rhombohedral crystals or in masses compare ammoniojarosite, argentojarosite, natrojarosite, plumbojarosite

Word History


German jarosit, from Barranco Jaroso, Almería, Spain + German -it -ite

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Dictionary Entries Near jarosite

Cite this Entry

“Jarosite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jarosite. Accessed 3 Dec. 2023.

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