福建紫金山Cu-Au礦床中地開石的礦物學(xué)特征
[Abstract]:Decausite has wide potential in industrial applications of ceramics, coatings, cosmetics and fillers. In this study, three types of typical ground quarts (transparent, translucent and opaque) and a widely distributed leaching type in the Zijinshan Au-Cu deposit were selected. The (XRD), was diffracted by electron probe (EPMA), X ray powder. Fourier transform Infrared Spectroscopy (FT-IR) and Field Emission scanning Electron Microscopy (FESEM) were used to characterize the mineralogical characteristics. The comparative analysis of EPMA composition showed that the tetracyte had high purity, low Al2O3 and Si O 2 mass fraction, low, Fe O mass fraction and high whiteness. The results of XRD and FT-IR show that the opacity is better and the order degree is higher. With the increase of transparency, the order degree of transparent open stone decreases and the crystallization is poor. The opacity of the crystal is well developed, the lamellar stacking is close, the maximum transverse size of the grain is 5 渭 m. With the increase of transparency, the transverse size of the grain decreases, and the grain size of the transparent rock is 0.2 渭 m. The pseudo-hexagonal lamellae can be seen stacking each other, but due to acid leaching, there are many small voids on the lamellae, and the edge of the lamellar dissolves and accumulates loosely. The interlayer of the leachate is favorable to the intercalation of other polymer materials. It can be used to prepare dicaulite-polymer composites. In addition, the mineralogical characteristics of the open rock in Zijinshan Au-Cu deposit are studied, and the relationship between the formation of the rock and the mineralization of the deposit is clarified.
【作者單位】: 福州大學(xué)材料學(xué)院;福州大學(xué)紫金礦業(yè)學(xué)院;紫金礦業(yè)集團(tuán)股份有限公司;
【基金】:國家自然科學(xué)基金(編號:41002016) 福建省教育廳基金(編號:810092) 福州大學(xué)科技發(fā)展基金(編號:650075)
【分類號】:P578.94;P618.41;P618.51
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