{"id":30543,"date":"2025-03-04T07:25:40","date_gmt":"2025-03-04T01:55:40","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=30543"},"modified":"2025-04-11T08:18:49","modified_gmt":"2025-04-11T02:48:49","slug":"ferrihydrite","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/ferrihydrite\/","title":{"rendered":"Ferrihydrite"},"content":{"rendered":"<h2>Ferrihydrite Latest News<\/h2>\n<p>A recent study revealed that the red color of Mars could be due to the presence of an iron-containing mineral called ferrihydrite.<\/p>\n<h2>About Ferrihydrite\u00a0<\/h2>\n<ul>\n<li>It is a <strong>poorly crystalline nanomineral<\/strong> buildup of about 20% (FeO4) and 80% (FeO6) polyhedra.<\/li>\n<li><strong>Formation:<\/strong> It forms by <strong>rapid oxidation and hydrolysis<\/strong>, and exists in varying degrees of structure disorder.<\/li>\n<li>It is one of <strong>the initial corrosion products<\/strong> in the oxidation of iron, and is the precursor to the formation of the more stable mineral <strong>phases goethite<\/strong> (\u03b1-FeO(OH)) and <strong>hematite<\/strong> (\u03b1-Fe2O3 ).\u00a0<\/li>\n<\/ul>\n<h2>Occurrence of Ferrihydrite<\/h2>\n<ul>\n<li>It is widespread in the <strong>soluble fraction of soils<\/strong> and <strong>weathered rock<\/strong>.<\/li>\n<li>It precipitates around cold and hot springs, especially those supporting iron-metabolizing bacteria; in acid mine effluent.<\/li>\n<li>The iron bacteria, especially <strong>Gallionella ferruginea, Leptothrix ochracea and Toxothrix trichogenes create ferrihydrite<\/strong> as a waste product of their metabolism.<\/li>\n<li>It is <strong>known to trap water<\/strong> and protect organic molecules and forms rapidly in cool water.<\/li>\n<li>It forms a <strong>significant proportion of soils,<\/strong> especially soils formed under cool, moist conditions and it occurs as a pre-terrestrial weathering product in meteorites.<\/li>\n<\/ul>\n<h2>Ferrihydrite FAQs<\/h2>\n<p><strong>Q1. <\/strong>What is the formula for ferrihydrite?<\/p>\n<p><strong>Ans.<\/strong> (Fe3+)2O3\u00b70.5H2O<\/p>\n<p><strong>Q2. <\/strong>What is the formation of ferrihydrite?<\/p>\n<p><strong>Ans.<\/strong> Formation and transformation of ferrihydrite depend on Fe(III) hydrolysis rate, and silicate and Mn(II) concentration.<\/p>\n<p><strong>Q3. <\/strong>What type of rock is goethite?<\/p>\n<p><strong>Ans.<\/strong> Goethite is an iron oxyhydroxide containing ferric iron<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/www.deccanherald.com\/science\/space\/iron-mineral-reason-for-mars-red-colour-study-suggests-hints-planet-was-once-habitable-3422691\" target=\"_blank\" rel=\"nofollow noopener\">DH<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ferrihydrite is a poorly crystalline nanomineral buildup of about 20% (FeO4) and 80% (FeO6) polyhedra.<\/p>\n","protected":false},"author":5,"featured_media":30544,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-30543","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/30543","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=30543"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/30543\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/30544"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=30543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=30543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=30543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}