Author(s): Kamel, A.A.M., Sharara, A.M. and Amin, A.M
Article publication date: 1991-04-01
Vol. 9 No. 1 (yearly), pp. 11-24.
132
Keywords
mineralogical, granite rocks, Egypt
Abstract
Six granitic localities from southern Sinai, Egypt were selected for the present study. Representative samples were collected from each area. These samples were examined microscopically and mineralogically analysed using X-ray diffraction technique. Porphyritic and granular textures occur. These samples are essentially composed of quartz, K-feldspars (microcline-orthoclase), plagioclase feldspars (oligoclase-albite) and biotite. They vary in the relative proportion of these minerals. alteration and degree of interlocking. The mechanical and physical properties of specimens prepared from cach granitic locality were determined. The results are promising since they are within the range of cifications required for construction and ornamental stones. In addition, the variation in the compressive strength values of these granites was correlated with the texture and composition.