jarosite

noun ja·ro·site \jəˈrōˌsīt, ˈjȧrəˌs-\

Definition of jarosite

plural

-s

  1. :  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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a rounded knoll or a ridge of ice

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