 | Macdonald, R., Bagiński, B., Kartashov, P., Zozulya, D., Dzierżanowski, P. (2012) Chevkinite-group minerals from Russia and Mongolia: new compositional data from metasomatites and ore deposits. Mineralogical Magazine, 76 (3) 535-549 doi:10.1180/minmag.2012.076.3.06 | Journal (article/letter/editorial) | | include chevkinite-(Ce), perrierite-(Ce), polyakovite-(Ce) and Sr- and Zr-rich perrierite-(Ce). Compositional... Despite the varied parageneses, the chevkinite-(Ce) compositions are similar to previously published...hydrothermal alteration, chevkinite-(Ce), perrierite-(Ce), polyakovite-(Ce). Introduction CHEVKINITE-GROUP...(2) to provide further compositional data on polyakovite-(Ce) from the type locality; (3) to describe the...subgroup Chevkinite-(Ce) Polyakovite-(Ce) Maoniupingite-(Ce) Dingdaohengite-(Ce) (REE,Ca)4Fe2+(Ti,Fe3+ |  | Macdonald, Ray, Bagiński, Bogusław, Belkin, Harvey E., Stachowicz, Marcin (2019) Composition, paragenesis, and alteration of the chevkinite group of minerals. American Mineralogist, 104 (3) 348-369 doi:10.2138/am-2019-6772 | Journal (article/letter/editorial) | | inclusions in diamond in a kimberlite at Ranch River, Zimbabwe, grew under mantle P-T conditions (Kopylova...data. The Cr- and Mn-analogs of chevkinite-(Ce), polyakovite, and christofschäferite, respectively, are...Ce4Fe2+Ti2Ti2(Si2O7)2O8 be named dingdaohengite-(Ce), a proposal accepted by the CNMNC-IMA. Should all...be renamed dingdaohengite? In the type perrierite-(Ce), from Nettuno, Italy, Al is dominant in the C site...perrierite. If it is assumed that A = Ca, Sr, Y, La, Ce, Nd, Th; B = Mg, Mn, Fe2+; C = Al, Ti, Cr, Fe2+, |  | | Journal (article/letter/editorial) | | expressed by the formula A4BC2D2Si4O22, where A = (La,Ce,Ca,Sr,Th), B = Fe2+, C = (Fe2+,Fe3+,Ti,Al,Zr,Nb)...Montana (Chakhmouradian and Mitchell, 1999), polyakovite, found in a dolomite vein in the Ilmen Mountains...on the basis of synthesized crystals where La and Ce were replaced by Nd and Fe by Mg or Co. Using natural...0.518 Formula based on 22 oxygens La 0.905 0.902 Ce 1.590 1.539 Pr 0.148 0.147 Nd 0.528 0.505 Sm Gd 0...described by Exley (1980), we used La for Y, La, Ce, Er and Yb, and Lb for Pr, Nd, Sm, Gd and Dy, with |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43... Prague Printedin Czech Republicby Finidr.u.o .. Ce,ky Te~in 14/02/03/0 I All rights reserved•• ·o pan...dominant rareearth element (REE). e.g. monazite-(Ce), monazite(Nd), etc. In a few cases a similar procedure...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Mt. (mount or mountain), Mts. (mountains), R. (river), Is. (island), Vole. (volcano), Penin. (peninsula) |
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