Mineralogical and Geochemichal aspects of Nb-Ta oxide minerals from Wadi El Sheih mineralized pegmatite, Central Eastern Desert, Egypt

Abstract

Rare-metals and rare earth mineralization has been observed in Wadi El Sheih older granitoids bearing uncommon mineralized pegmatite. This type of mineralization was recorded as distinguishable mega-crystals scattered within the pegmatite. Detailed mineralogical investigation was carried out using different analytical techniques as: microscopic examinations, x-ray diffraction (XRD), and scanning electron microscope (SEM) providing with energy dispersive spectrometer (EDS) unite. These studies revealed the presence of several valuable minerals like Euxenite and Fergusonite as well as; gives a clear comparative idea on the mineralogical and geochemical characteristics of the Nb-Ta oxides.