TY JOUR TI Internal structure and patterns of distribution of mineral types of rare metal pegmatites in the Darai Pech valley (Kunar province, Afghanistan) KW petrography KW rare metal pegmatites KW vertical zoning KW internal structure KW granite KW Darai Pech KW Afghanistan JO Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences AU Evdokimov, A.N. AU Yusufzay, A.. AU Musazay, A.M. PY 2024 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"