{"id":74812,"date":"2026-05-12T11:20:44","date_gmt":"2026-05-12T05:50:44","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=74812"},"modified":"2026-05-12T12:47:49","modified_gmt":"2026-05-12T07:17:49","slug":"limestone","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/limestone\/","title":{"rendered":"Limestone"},"content":{"rendered":"<h2><b>Limestone Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The Ministry of Mines is set to launch the second tranche of the auction of limestone blocks in Jammu and Kashmir.<\/span><\/p>\n<h2><b>About Limestone<\/b><\/h2>\n<ul>\n<li><span style=\"font-weight: 400;\">It is a <\/span><b>sedimentary rock made of calcium carbonate<\/b><span style=\"font-weight: 400;\"> (CaCO3), usually in the form of calcite or aragonite.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">It occurs across <\/span><b>almost all geological sequences<\/b><span style=\"font-weight: 400;\"> from Pre-Cambrian to recent, except in Gondwana formations.<\/span><\/li>\n<li aria-level=\"1\"><b>Composition of Limestone<\/b><\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">It often contains <\/span><b>magnesium carbonate,<\/b><span style=\"font-weight: 400;\"> either as dolomite CaMg (CO3 )2 <\/span><b>or \u00a0 magnesite (MgCO3 ) <\/b><span style=\"font-weight: 400;\">mixed with calcite.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">It also contains minor constituents of <\/span><b>clay, iron carbonate, feldspar, pyrite, and quartz<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Distribution of Limestone in India: Karnataka has the largest share<\/b><span style=\"font-weight: 400;\"> (28%) of total resources, followed by Andhra Pradesh, Rajasthan, Gujarat, Meghalaya, and Chhattisgarh.<\/span><\/li>\n<\/ul>\n<h2><b>Uses of Limestone<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The principal use of limestone is in the <\/span><b>Cement Industry.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Metallurgical Processes:<\/b><span style=\"font-weight: 400;\"> It is used as a <\/span><b>flux in iron<\/b><span style=\"font-weight: 400;\"> and steel production.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Chemical Production:<\/b><span style=\"font-weight: 400;\"> It is used in production of Calcium carbide, alkali, bleaching powder.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Agriculture:<\/b><span style=\"font-weight: 400;\"> It is used as <\/span><b>soil conditioning agent, fertilizer<\/b><span style=\"font-weight: 400;\"> (calcium ammonium nitrate).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Consumer Products:<\/b><span style=\"font-weight: 400;\"> Whiting (chalk and precipitated limestone) in rubber, paint, cosmetics, toothpaste, and shoe polish.<\/span><\/li>\n<\/ul>\n<p><b>Source:<\/b> <strong><a href=\"https:\/\/www.newsonair.gov.in\/ministry-of-mines-to-launch-second-limestone-blocks-in-jk\/\" target=\"_blank\" rel=\"nofollow noopener\">News On Air<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Limestone is a sedimentary rock made of calcium carbonate (CaCO3), usually in the form of calcite or aragonite. Read more about Limestone, Composition, Distribution, Uses, Latest News.<\/p>\n","protected":false},"author":24,"featured_media":74795,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[3856,21,22,23],"class_list":{"0":"post-74812","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-limestone","9":"tag-prelims-pointers","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/74812","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\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=74812"}],"version-history":[{"count":2,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/74812\/revisions"}],"predecessor-version":[{"id":103075,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/74812\/revisions\/103075"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/74795"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=74812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=74812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=74812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}