As-Bearing Phosphosiderite from Copiapo District, Atacama, Chile.
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| Title: | As-Bearing Phosphosiderite from Copiapo District, Atacama, Chile. |
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| Authors: | Gritsenko, Yu. D.1,2 (AUTHOR), Vigasina, M. F.1 (AUTHOR), Dedushenko, S. K.3 (AUTHOR), Ksenofontov, D. A.1 (AUTHOR), Melchakova, L. V.1 (AUTHOR), Ogorodova, L. P.1 (AUTHOR) logor48@mail.ru |
| Source: | Geochemistry International. Oct2022, Vol. 60 Issue 10, p1029-1036. 8p. |
| Subjects: | X-ray powder diffraction, Microprobe analysis, Mössbauer spectroscopy, Thermal analysis, Unit cell |
| Abstract: | As-bearing phosphosiderite (3−9 wt % As2O5) from Atacama, Chile, was studied by X-ray powder diffraction, thermal and microprobe analysis, and by infrared, Raman, and Mössbauer spectroscopy. The averaged formula of the studied phosphosiderite, normalized to two cations, is ( Al0.04)[(P0.94As0.06)O4].2.02H2O. The parameters of the monoclinic unit cell of As-bearing phosphosiderite were determined by X-ray powder diffraction: a = 5.3258(6) Å, b = 9.8003(11) Å, c = 8.7116(9) Å, and β = 90.64(1)°. The As → P isomorphic substitution was established in the tetrahedral position of the mineral. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | As-bearing phosphosiderite (3−9 wt % As2O5) from Atacama, Chile, was studied by X-ray powder diffraction, thermal and microprobe analysis, and by infrared, Raman, and Mössbauer spectroscopy. The averaged formula of the studied phosphosiderite, normalized to two cations, is ( Al0.04)[(P0.94As0.06)O4].2.02H2O. The parameters of the monoclinic unit cell of As-bearing phosphosiderite were determined by X-ray powder diffraction: a = 5.3258(6) Å, b = 9.8003(11) Å, c = 8.7116(9) Å, and β = 90.64(1)°. The As → P isomorphic substitution was established in the tetrahedral position of the mineral. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00167029 |
| DOI: | 10.1134/S0016702922100044 |
