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      Translated title: Chemical and mineralógica!. Characterization of Machu Rumi, a clay with geofagic uses by residents of Chimpajilahuata Community of Azángaro district, Puno, Perú

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          Abstract

          Resumen Spanish title: Caracterización química y mineralógica del Machu Rumi de uso geoíágico por los habitantes de la comunidad de Chimpajilahuata del distrito de Azángaro, Puno, Perú. En el presente artículo se describe la caracterización química y mineralógica del Machu Rumi (Piedra antigua con aplicaciones geofágicas por los integrantes de la comunidad de Chimpajilahuata del distrito de Azángaro, Puno, Perú). Las muestras fueron analizadas por la técnica de Fluorescencia de Rayos X (FRX), Difracción de Rayos X (DRX), y Microscopía Electrónica de Barrido (SEM) cuya abundancia elemental fue: Fe 11%, Al 4%, Ti 4080ppm, Ca 814 ppm, y del Zn con 220ppm, seguida de otros elementos de baja concentración como el V, Cr, Mn, Ni y Sr. Asimismo, se reportan las principales fases cristalinas identificadas por la técnica de Difracción de Rayos X como: cuarzo (SiO2), Clinochlore [Mg3 Mn2 Al Si3 Al O10 (OH)8], goetita [Fe+3 O (OH)]; y la chamosita [(Mgs.oseFe4.96(4)) AI2.724 (SÍ5.70 AI2.30 O20) (OH)i6], la presencia de Goethita es común en las capas 2, 3, 5 y 6; este mineral de arcilla es considerado un reductor muy eficaz con capacidad de remover arsénico inorgánico así como orgánico. La topología laminar de las muestras fue observada a través de las micrografías obtenidas por Microscopía Electrónica de Barrido.

          Translated abstract

          Abstract Machu Rumi, or an oíd stone with geofagy applications used by members of the Chimpajilahuata community of Azángaro district in Puno, Perú, was chemically and mineralogically characterized. The samples were analyzed by means of the use of X-ray fluorescence (XRF), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) whose elemental abundance was: Fe 11%, Al 4%, Ti 4080 ppm, Ca 814 ppm, and Zn 220 ppm, and other elements with low concentration such as V, Cr, Mn, Ni and Sr. Also, the main crystalline phases were identified by X-ray Diffraction and reported as: Quartz (SiO2), Clinochlore [Mg3 Al Mn2 Al Si3Oio(OH)8], Goethite [Fe+3O(OH)]; and Chamosita [(Mg5.036Fe4.964) AI2.724 (SÍ5.70 AI2.30 O20) (OH)i6]. Goethite presence was common in the layers 2, 3, 5 and 6; this clay mineral is considered a very effective reducing agent, capable of removing inorganic as well as organic arsenic. The topology sheet samples were observed across the micrographs obtained by scanning electrón microscopy.

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          Determinación y análisis de fórmulas estructurales de esmectitas del estado de Guanajuato

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            Environmental Health

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              Acta Microscópica

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbq
                Revista Boliviana de Química
                Rev. Bol. Quim
                Universidad Mayor de San Andrés (La Paz, La Paz, Bolivia )
                0250-5460
                December 2016
                : 33
                : 5
                : 190-195
                Article
                S0250-54602016000500006
                82c17ad6-655c-4a96-81f3-0f082b39e025

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 17, Pages: 6
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                SciELO Bolivia


                Machu Rumi,Geofagy,Clay,XRF,XRD,Chimpajilahuata
                Machu Rumi, Geofagy, Clay, XRF, XRD, Chimpajilahuata

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