 | Xu, J., Yang, G. G, Li, G., Wu, Z., Shen, G. (2008) Dingdaohengite-(Ce) from the Bayan Obo REE-Nb-Fe Mine, China: Both a true polymorph of perrierite-(Ce) and a titanic analog at the C1 site of chevkinite subgroup. American Mineralogist, 93 (5) 740-744 doi:10.2138/am.2008.2543 | Journal (article/letter/editorial) | | Dingdaohengite-(Ce) from the Bayan Obo REE-Nb-Fe Mine, China: Both a true polymorph of perrierite-(Ce) and a titanic...titanic analog at the C1 site of chevkinite subgroup Jinsha Xu,1,* Guaming Yang,2 Guowu Li,3 Zhilan Wu...610082 Chengdu, China 2 China University of Geosciences (Wuhan), 430071 Wuhan, China 3 China University of...Beijing, China 4 Technologic Managerial Department, Bayan Obo Iron Mine, 014080 Baotou, China 1 Abstract...Dingdaohengite-(Ce), ideally Ce4Fe Ti2Ti2(Si2O7)2O8, is a new member of the chevkinite group minerals |  | Shimazaki, Hidehiko, Yang, Zhuming, Miyawaki, Ritsuro, Shigeoka, Masako (2008) Scandium-Bearing Minerals in the Bayan Obo Nb-REE-Fe Deposit, Inner Mongolia, China. Resource Geology, 58 (1) 80-86 doi:10.1111/j.1751-3928.2007.00045.x | Journal (article/letter/editorial) | | Scandium-Bearing Minerals in the Bayan Obo Nb-REE-Fe Deposit, Inner Mongolia, China Hidehiko Shimazaki1, Zhuming...Beijing, China Abstract Aegirine, “perrierite-(Ce)”, and ferrocolumbite, occurring in the Bayan Obo Nb-REE-Fe...Nb-REE-Fe deposit in Inner Mongolia, China, contain appreciable amounts of scandium. The Sc2O3 content in...value of 1.19%. The Sc2O3 content of “perrierite-(Ce)” (TS-20) was 2.82–3.64% with an average value of...by-product from the deposit. Keywords: Aegirine, Bayan Obo, ferrocolumbite, “perrierite-(Ce)”, scandium. 1 |  | | | | pp. 777–796 Compositional variation in the chevkinite group: new data from igneous and metamorphic...Electron microprobe analyses are presented of chevkinite-group minerals from Canada, USA, Guatemala, Norway...extend slightly the range of compositions in the chevkinite group, e.g. the most MgO-rich phases yet recorded...Virginia and Guatemala contain both perrierite and chevkinite compositions. The new and published analyses...substitution scheme are described. K EY WORDS : chevkinite-group, perrierite, metamictization, distribution |  | Nedosekova, Irina, Vladykin, Nikolay, Udoratina, Oksana, Belyatsky, Boris (2021) Ore and Geochemical Specialization and Substance Sources of the Ural and Timan Carbonatite Complexes (Russia): Insights from Trace Element, Rb–Sr, and Sm–Nd Isotope Data. Minerals, 11 (7) 711 doi:10.3390/min11070711 | Journal (article/letter/editorial) | | with carbonatites: Mountain Pass (USA) and Bayun-Obo (China) provide more than half of the world production...this type of carbonatite: the giant Nb-REE Tomtor deposit (Yakutia); large Nb–P deposits in Eastern Siberia—White...(East Sayan province); the Nb–REE Chuktukonskoe deposit (Chadobetsky Uplift); the Nb–Ta–P Neske-Vaara (Kola...Maoniuping (Qinling and Mianning-Dechang orogenic belts, China [11,17–19]). In the Russian territory, such complexes...Russia where mining was carried out. The carbonatite origin and associated rare metal deposit sources are |  | Chikanda, Frances, Otake, Tsubasa, Ohtomo, Yoko, Ito, Akane, Yokoyama, Takaomi D., Sato, Tsutomu (2019) Magmatic-Hydrothermal Processes Associated with Rare Earth Element Enrichment in the Kangankunde Carbonatite Complex, Malawi. Minerals, 9 (7) 442 doi:10.3390/min9070442 | Journal (article/letter/editorial) | | critical stages of REE mineralization in this deposit. The δ56 Fe values of most of the carbonatite lies...Brazil [6]; the Mianning-Dechang and Qinling belts, China [7]; Kangankunde, Tundulu, and Songwe, Malawi [8...carbonatite, the largest light rare earth (LREE) deposit in the Chilwa Alkaline province, Malawi. Previous...generated the prospective Kangankunde carbonatite deposit are still only speculative in nature. Accordingly...were usedperformed for most quantitative except for Ce in lines, respectively. analysis. Qualitative analysis |  | | Book (edition) | | cover photo: Ottensite, 35 111111, Qinglong dist., China Fluomatromicrolite, x 25111111, Naipa mine, Mozambique...Zarshouran Au-As deposit, Takab region, Iran Grandviewite, 5 111111, Capillitas deposit, Argentina Calciopetersite...province prefecture county departement departamento district municipio...0(6) - 2.58(10) - 2.04(5). At the Kiura mine, Saiki City, Oita pref., Japan. IMA 2012-101. Adolfpateraite...Argentina. CM 48, I 23128, 2010. Allanitc-( 'd) Ca(Nd,Ce,Ca)Fe 2+(Al,Fe3+)i[OJ(OH)J(SiO4 )J(Si2 O 7)] (9.B |  | | Book | | in southwestern Arizona. When used with a town or city this designation indicates the direction in which...Just, Perth, Australia; Richard Thomssen, Carson City, Nevada, USA; Peter Embrey, London, England; Jessie...Cryst. B45 (1989), 201. Aeschynite-(Ce) 2 Aeschynite-(Ce), (Ce,Ca,Fe,Th)(Ti,Nb)2(0,0H)6, Orth. Sub-metallic...Niobo-aeschynite-(Ce). Aeschynite-(Nd), (Nd, Ce, Ca)(Ti,Nb)2(0,0H)6, dark/light brown. Bayan Obo, Inner Mongolia...Mongolia, China. 0 Syst=? Adamantine H= 5-6, Djjj= 4.8, D(,=?, IVD 11. Zhang & Tao, 1982. Am. Min. 69(1984) |  | | Book | | overflow —_Lat. fluere, to flow Old English ca.450-1050 CE krup-yo, to conceal, hide Gk. kryptein, to hide...Romance languages Greek Middle English ca.! 100-1500 CE PO, Me Modern English out ee nom, to assign...the Commission of Levinson (1966), e.g., monazite-(Ce). Geometric on New variants are in some cases prefixed...et al. (1978): Am. Mineral. 63, 930. Abenakiite-(Ce) NazoREE6(SiO3)6(PO4)6(CO3)6(SO2)O, Matzko, J.J...Aeschynite-(Ce) (Ce,Ca,Fe, Th) (Ti,Nb)2(O,OH)¢, orth., Pbnm. Dimorphic relationship with lucasite-(Ce). Sjdgren |  | | Journal (article/letter/editorial) | | from the text by simply using the code of each deposit in the chart. This code can be created by combining... . . . . 3.4. Metamorphic chromium (gemstone) deposit . . . . . . . . . . . 3.5. Chromium supply and... . . . . . . . . 11.3. Structure-bound copper deposit . . . . . . . . . . . . . . . . . . . . . . . ...present of mining and metallurgy of lead . . . . . . . . . . . 18.7.2. Past and present of mining and metallurgy...hampering our access to mineral deposits, such as mining depth controlled among others by the geothermal | | | Journal (article/letter/editorial) | | from the text by simply using the code of each deposit in the chart. This code can be created by combining... . . . . 3.4. Metamorphic chromium (gemstone) deposit . . . . . . . . . . . 3.5. Chromium supply and... . . . . . . . . 11.3. Structure-bound copper deposit . . . . . . . . . . . . . . . . . . . . . . . ...present of mining and metallurgy of lead . . . . . . . . . . . 18.7.2. Past and present of mining and metallurgy...hampering our access to mineral deposits, such as mining depth controlled among others by the geothermal |
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