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jarosite

[ jar-uh-sahyt, juh-roh-sahyt ]

noun

  1. a yellowish or brownish mineral, a hydrous sulfate of potassium and iron, KFe 3 (SO 4 ) 2 (OH) 6 , occurring in small crystals or large masses.


jarosite

/ ˈdʒærəˌsaɪt /

noun

  1. 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
“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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Word History and Origins

Origin of jarosite1

1850–55; named after Barranco Jaroso (in Almería, Spain); -ite 1
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Word History and Origins

Origin of jarosite1

C19: from Barranco Jaroso, in Almeria, Spain + -ite 1
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Example Sentences

Jarosite usually occurs as drusy incrustations of minute indistinct crystals with a yellowish-brown colour and brilliant lustre.

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