Abstract
Clay mineral resources were found in West Lampung Regency. Local citizen has been using clay for pottery and building materials. Optimization of mineral utilization is needed to increase the economic value of these mineral resources. The study of mineralogy and characterization was carried out to determine the possible uses of clay minerals. The study was conducted on 5 clay samples of different color using XRD, FTIR, TGA, and SEM analysis. The result shows natural clay minerals assemblages are kaolinite and halloysite. Thermal behaviors of the samples have a multi-stage decomposition with relatively stable intermediates. Kaolinite appears like pseudo-hexagonal platelets with various sizesand halloysite looks like a distinct tubular form in different sizes.
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