{"id":3040,"date":"2022-11-03T11:15:27","date_gmt":"2022-11-03T10:15:27","guid":{"rendered":"https:\/\/kmplg.sk\/?p=3040"},"modified":"2023-07-30T21:06:47","modified_gmt":"2023-07-30T19:06:47","slug":"monazite-gd-the-new-mineral-found-in-slovakia","status":"publish","type":"post","link":"https:\/\/kmplg.sk\/?p=3040&lang=en","title":{"rendered":"Monazite-(Gd) \u2013 the new mineral found in Slovakia"},"content":{"rendered":"\n<p><strong>Scientists from the Comenius University in Bratislava have discovered a\u00a0rare new gadolinium mineral in Slovakia<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"328\" src=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Monazit-Gd-propagacia-banner-01-1024x328.jpg\" alt=\"\" class=\"wp-image-3022\" srcset=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Monazit-Gd-propagacia-banner-01-1024x328.jpg 1024w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Monazit-Gd-propagacia-banner-01-300x96.jpg 300w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Monazit-Gd-propagacia-banner-01-768x246.jpg 768w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Monazit-Gd-propagacia-banner-01-1536x493.jpg 1536w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Monazit-Gd-propagacia-banner-01-2048x657.jpg 2048w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Monazit-Gd-propagacia-banner-01-187x60.jpg 187w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Monazite-(Gd), thenew mineral from Slovakia, found on Prakovce-Zimn\u00e1 voda locality was approved by Commission on New Minerals, Nomenclature and Classification (CNMNC) of International Mineralogical Association (IMA). Although there are ca. 100 new minerals described per year, it is undoubtedly a significant milestone in the field of mineralogy, crystal chemistry, and geochemistry. This new mineral belongs to the group of nominally anhydrous monoclinic REE phosphates. Among them, monazite-(Ce) is the most common end-member, which, however, with zircon is one of the most studied minerals in geosciences, widely used in geochronology, geochemistry, environmental mineralogy and material science. Similarly, it is a principal economic source of rare earth elements together with REE carbonates. In addition to monazite-(Ce); monazite-(La), monazite-(Nd), and monazite-(Sm) occur as rare minerals in nature, and their names follow the Levinson suffix for rare earth minerals (lanthanides Ln and yttrium Y = REE). Newly described monazite-(Gd) is unique due to Gd-dominance on the crystallographic cationic site and shows the highest published Gd content in natural minerals (&lt;23 wt.% Gd<sub>2<\/sub>O<sub>3<\/sub>). It is only the second Gd-dominant mineral worldwide after lepersonnite-(Gd), which, however, contains relatively low absolute concentration of essential Gd (2.1 wt% Gd<sub>2<\/sub>O<sub>3<\/sub>).<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"1024\" height=\"943\" src=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0014-1.jpg\" alt=\"\" data-id=\"3029\" data-full-url=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0014-1.jpg\" data-link=\"https:\/\/kmplg.sk\/?attachment_id=3029\" class=\"wp-image-3029\" srcset=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0014-1.jpg 1024w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0014-1-300x276.jpg 300w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0014-1-768x707.jpg 768w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0014-1-65x60.jpg 65w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"1024\" height=\"943\" src=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0013-1.jpg\" alt=\"\" data-id=\"3030\" data-full-url=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0013-1.jpg\" data-link=\"https:\/\/kmplg.sk\/?attachment_id=3030\" class=\"wp-image-3030\" srcset=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0013-1.jpg 1024w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0013-1-300x276.jpg 300w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0013-1-768x707.jpg 768w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/ZV_2A_FIB_0013-1-65x60.jpg 65w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"644\" height=\"1024\" src=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-644x1024.jpg\" alt=\"\" data-id=\"3031\" data-full-url=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-scaled.jpg\" data-link=\"https:\/\/kmplg.sk\/?attachment_id=3031\" class=\"wp-image-3031\" srcset=\"https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-644x1024.jpg 644w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-189x300.jpg 189w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-768x1222.jpg 768w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-966x1536.jpg 966w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-1287x2048.jpg 1287w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-38x60.jpg 38w, https:\/\/kmplg.sk\/wp-content\/uploads\/2022\/10\/Mnz-Gd-BSE-2-scaled.jpg 1609w\" sizes=\"(max-width: 644px) 100vw, 644px\" \/><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>Gadolinium-dominant minerals are generally quite rare in nature due to the low absolute abundance of Gd, which is relative to other, more abundant REE (La-Sm, Y) in the Earth\u2019s lithosphere. Selective enrichment of Gd or other individual MREE and HREE in terms of absolute abundances is a rare geochemical process which occurred as a rather, localized anomaly under specific conditions. The monazite-(Gd) is formed by geochemical processes that lead to selective enrichment of hydrothermal fluid by medium rare earth elements (MREE) and with a conspicuous maximum at Gd. Here, the newly approved monazite-(Gd) occurs in association with other REE phosphates and silicates enriched in Gd. The research of these geochemical processes and formation of monazite-(Gd) and other Gd-rich minerals during hydrothermal remobilization of REE and alteration of uranium minerals such as uraninite and brannerite was provided on top analytical instruments by an international collective of scientists from Slovakia, Germany and Czech Republic. The scientific report of Ondrejka M., Uher P., Ferenc \u0160., Milovsk\u00e1 S., Miku\u0161 T., Moln\u00e1rov\u00e1 A., \u0160koda R., Kop\u00e1\u010dik R a\u00a0Ba\u010d\u00edk P.:\u00a0 <a href=\"http:\/\/dx.doi.org\/10.2138\/am-2022-8418\">Gadolinium-dominant monazite and xenotime: selective hydrothermal enrichment of middle REE during low-temperature alteration of uraninite, brannerite and fluorapatite (the Zimn\u00e1 Voda REE-U-Au quartz vein, Western Carpathians, Slovakia)<\/a> has been accepted for a peer-reviewed publication in a prestige mineralogical journal American Mineralogist (doi: 10.2138\/am-2022-8418). The approved proposal IMA 2022-055 of monazite-(Gd) has been submitted by Ondrejka M., Uher P., Ferenc \u0160., Majzlan J., Pollok K., Milovsk\u00e1 S., Miku\u0161 T., Moln\u00e1rov\u00e1 A., \u0160koda R., Kop\u00e1\u010dik R., Orov\u010d\u00edk \u013d. a Ba\u010d\u00edk P.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scientists from the Comenius University in Bratislava have discovered a\u00a0rare &hellip; <\/p>\n","protected":false},"author":2,"featured_media":3026,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"ngg_post_thumbnail":0},"categories":[8],"tags":[],"post_folder":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Monazite-(Gd) \u2013 the new mineral found in Slovakia - 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