in El Atshan trachyte, central Eastern Desert, Egypt Hamdy H. Abd El-Naby*,** * King Abdulaziz University...Maadi, Cairo, Egypt - El Atshan area, situated in the central Eastern Desert of Egypt, is a good location... - - - - - - - - - - - - Keywords: Egypt, Unidentified Zr rich silicate mineral, Betafite...schroeckingerite, rutherfordine, zippeite, and uranopilite (Attawiya, 1971). However, only soddyite, kasolite...of the El Atshan area, central Eastern Desert, Egypt. The main objectives of the present study are to |