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jarosite

[ jar-uh-sahyt, juh-roh-sahyt ]
/ ˈdʒær əˌsaɪt, dʒəˈroʊ saɪt /
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noun
a yellowish or brownish mineral, a hydrous sulfate of potassium and iron, KFe3(SO4)2(OH)6, occurring in small crystals or large masses.
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Origin of jarosite

1850–55; named after Barranco Jaroso (in Almería, Spain); see -ite1

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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British Dictionary definitions for jarosite

jarosite
/ (ˈdʒærəˌsaɪt) /

noun
a yellow to brown secondary mineral consisting of basic hydrated sulphate of iron and potassium in masses or hexagonal crystals. Formula: KFe 3 (SO 4) 2 (OH) 6

Word Origin for jarosite

C19: from Barranco Jaroso, in Almeria, Spain + -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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