 | Pieczka, Adam, Cooper, Mark A., Hawthorne, Frank C. (2019) Lepageite, Mn32+(Fe73+Fe42+)O3[Sb53+As83+O34], a new arsenite-antimonite mineral from the Szklary pegmatite, Lower Silesia, Poland. American Mineralogist, 104 (7) 1043-1050 doi:10.2138/am-2019-6903 | Journal (article/letter/editorial) | | As-Sb accessory phases in the absence of typical löllingite and arsenopyrite; (2) very high degrees of Mn-Fe...the formulas of dumortierite-supergroup end-members do not reflect common presence of Sb+As in compositions...could correspond to weakly bonded ligands but they do not contribute significantly to the incident bond-valence...and As(9), and are all isolated groups in that they do not link to each other or to the polyhedra of the...common As and Sb minerals such as arsenopyrite, löllingite, tetrahedrite, etc. Of the ~20 arsenite ± antimonite |  | | Book | | stretching and bending vibrations of H2O molecules which do not form strong hydrogen bonds). These bands are...Mg-poor schorl from the Limoeiro mine, Murta, Minas Gerais, Brazil, the band of OH groups in the W site coordinated...with water molecules. However, the available data do not allow us to determine the degree of protonation...[nominally, Fe2+Mn2+2(PO4)2·3H2O] from Cigana mine, Brazil (a), landesite [nominally, Fe3+Mn2+2 (PO4)2(OH)·]...IR spectra of melanophlogite from other localities do not show any presence of methane molecules. In the |
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