[ jar-uh-sahyt, juh-roh-sahyt ]
/ ˈdʒær əˌsaɪt, dʒəˈroʊ saɪt /
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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
Words nearby jarosite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use jarosite in a sentence
Jarosite usually occurs as drusy incrustations of minute indistinct crystals with a yellowish-brown colour and brilliant lustre.
British Dictionary definitions for jarosite
/ (ˈdʒærəˌsaɪt) /
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