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jarosite
noun
ja·ro·site
\jəˈrōˌsīt, ˈjȧrəˌs-\
Definition of jarosite
-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
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Origin and Etymology of jarosite
German jarosit, from Barranco Jaroso, Almería, Spain + German -it -ite
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