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Rozenite is an uncommon hydrous iron sulfate mineral, Fe2+SO4•4(H2O).

It occurs as a secondary mineral, formed under low humidity at less than 21 °C as an alteration of copper-free melanterite which is a post mine alteration product of pyrite or marcasite. It also occurs in lacustrine sediments and coal seams. Associated minerals include melanterite, epsomite, jarosite, gypsum, sulfur, pyrite, marcasite and limonite.[1]

It was first described in 1960 for an occurrence on Ornak Mountain, Western Tatra Mountains, Małopolskie, Poland. It was named for Polish mineralogist Zygmunt Rozen (1874–1936).[1][2]


1. ^ a b c http://rruff.geo.arizona.edu/doclib/hom/rozenite.pdf Handbook of Mineralogy
2. ^ a b http://www.mindat.org/min-3469.html Mindat.org
3. ^ http://webmineral.com/data/Rozenite.shtml Webmineral data

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