Variable granitic rocks are widely used as decorative stones. The present work conducted accurate mapping and the utilization of a large leucogranitic intrusion (Um Takha area) as a decorative stones through physico-mechanical tests, mineralogical and geochemical compositions. These leucogranites are medium-grained, classified as syenogranites, peraluminous, calc-alkaline, and highly evolved granites developed during the post-collisional setting. This study utilized various remote sensing techniques to identify the Um Takha leucogranitic using ASTER and Landsat-9 data. A novel FCC band ratio of the ASTER image (RGB: b1+b3/b2, b2/b1, b7+b9/b8) was created, along with the Landsat-9 FCC band ratio of (4/7, 3/4, and 2/1) in the RGB, to effectively map the distribution of in the study area. These results, combined with field observation, led to the creation of a new modified geological map of the Um Takha area. The analysis of magnetic data reveals that the depth of magnetic sources under the study area ranges between 170 m and 2215 m, as calculated by source parameter image and Euler deconvolution techniques. The application of horizontal gradient, tilt derivatives and improved logistic techniques reveals that the major structural trend affecting the study area is in the N–S, NNE-SSW and NNW-SSE direction. The physico-mechanical properties of leucogranitic rocks (M13) fulfilled the requirements of dimension stone in terms of bulk density, compressive strength, and to some extent water absorption. Therefore, they could be acceptable for interior use and the light-duty purposes of exterior use, such as facades and cladding. This suggest that a large resources of leucogranitic can be used as a decorative stones.

变化的花岗岩被广泛用作装饰石材。目前的工作通过物理机械测试、矿物学和地球化学成分进行了精确测绘，并利用大型淡色花岗岩侵入体（Um Takha 地区）作为装饰石材。这些淡色花岗岩为中粒，分类为正长花岗岩、过铝质、钙碱性和在碰撞后环境中发育的高度演化的花岗岩。本研究利用各种遥感技术，利用 ASTER 和 Landsat-9 数据来识别 Um Takha 浅色花岗岩。创建了 ASTER 图像的新颖 FCC 波段比（RGB：b1+b3/b2、b2/b1、b7+b9/b8），以及 Landsat-9 FCC 波段比（4/7、3/4、和2/1）在RGB中，以有效地绘制研究区域中的分布。这些结果与现场观测相结合，绘制了 Um Takha 地区新的修改后的地质图。磁数据分析表明，通过源参数图像和欧拉反卷积技术计算，研究区下磁源深度在170 m至2 215 m之间。水平梯度、倾斜导数和改进逻辑技术的应用表明，影响研究区的主要构造趋势是N-S、NNE-SSW和NNW-SSE方向。淡色花岗岩（M13）的物理力学性质在容重、抗压强度和一定程度的吸水率方面满足规格石材的要求。因此，它们可以用于室内使用和外部使用的轻型用途，例如外墙和包层。这表明大量的淡色花岗岩资源可以用作装饰石材。