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jarosite |
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jarosite [ˈdʒærəˌsaɪt] n (Earth Sciences / Minerals) a yellow to brown secondary mineral consisting of basic hydrated sulphate of iron and potassium in masses or hexagonal crystals. Formula: KFe3(SO4)2(OH)6 [from Barranco Jaroso, in Almeria, Spain + -ite1] How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The rover sent data to Earth showing that the rocks contain jarosite, an iron-bearing mineral that forms in acidic water. On Earth, jarosite is found in association with acidic lakes or hot springs. Gold mineralization is associated to iron oxide (limonite-goethite), jarosite and dark silica alteration within brecciated limestone. |
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