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Study on Mineral Composition and Main Mineral Morphology of Bauxite from ZhongXiang, HuBei Province
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In this paper, the mineral composition and main mineral morphology of bauxite were studied from ZhongXiang deposit, HuBei province. Through Electron Microscope Identification, there are two main rock types, oolitic, bean-like and aphanitic or fine crystalline structure of bauxite. The main mineral morphology is micro-crystalline or flake, crumby forms. The mineral and chemical compositions of samples were investigated by XRD, EPMA analysis tests. The EPMA results showed that Al2O3 content is 47.95% ~ 75.04%, in association with other isomorphous impurities, such as Si, Fe, Ti and Mg in varying proportions. The mineral compositions of bauxite ore are mainly aluminum, iron, silicon minerals, which totally account for from 83.01% to 86.40%. The XRD revealed that diaspore, hematite and kaolinite are the major mineral components in the bauxite ores. The bauxite from ZhongXiang deposits is a type of high diaspore bauxite, partly with clay minerals. Furthermore, the function of bauxite as a good fire-resistant material was discussed.
Title: Study on Mineral Composition and Main Mineral Morphology of Bauxite from ZhongXiang, HuBei Province
Description:
In this paper, the mineral composition and main mineral morphology of bauxite were studied from ZhongXiang deposit, HuBei province.
Through Electron Microscope Identification, there are two main rock types, oolitic, bean-like and aphanitic or fine crystalline structure of bauxite.
The main mineral morphology is micro-crystalline or flake, crumby forms.
The mineral and chemical compositions of samples were investigated by XRD, EPMA analysis tests.
The EPMA results showed that Al2O3 content is 47.
95% ~ 75.
04%, in association with other isomorphous impurities, such as Si, Fe, Ti and Mg in varying proportions.
The mineral compositions of bauxite ore are mainly aluminum, iron, silicon minerals, which totally account for from 83.
01% to 86.
40%.
The XRD revealed that diaspore, hematite and kaolinite are the major mineral components in the bauxite ores.
The bauxite from ZhongXiang deposits is a type of high diaspore bauxite, partly with clay minerals.
Furthermore, the function of bauxite as a good fire-resistant material was discussed.
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