Geochemistry and Genesis of Beryl Crystals in the LCT Pegmatite Type, Ebrahim-Attar Mountain, Western Iran
minerals Article Geochemistry and Genesis of Beryl Crystals in the LCT Pegmatite Type, Ebrahim-Attar Mountain, Western Iran Narges Daneshvar 1 , Hossein Azizi 1,* , Yoshihiro Asahara 2 , Motohiro Tsuboi 3 , Masayo Minami 4 and Yousif O. Mohammad 5 1 Department of Mining Engineering, Faculty of Engineering, University of Kurdistan, Sanandaj 66177-15175, Iran; daneshvar_n@yahoo.com 2 Department of Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan; asahara@eps.nagoya-u.ac.jp 3 Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, Sanda 669-1337, Japan; tsuboimot@kwansei.ac.jp 4 Division for Chronological Research, Institute for Space-Earth Environmental Research, Nagoya University, Nagoya 464-8601, Japan; minami@isee.nagoya-u.ac.jp 5 Department of Geology, College of Science, Sulaimani University, Sulaimani 46001, Iraq; yousif.mohammad@univsul.edu.iq * Correspondence: azizi1345@gmail.com; Tel.: +98-918-872-3794 Abstract: Ebrahim-Attar granitic pegmatite, which is distributed in southwest Ghorveh, western Iran, is strongly peraluminous and contains minor beryl crystals. Pale-green to white beryl grains are crystallized in the rim and central parts of the granite body. The beryl grains are characterized by low contents of alkali oxides (Na2O = 0.24–0.41 wt.%, K2O = 0.05–0.17 wt.%, Li2O = 0.03–0.04 wt.%, Citation: Daneshvar, N.; Azizi, H.; and Cs2O = 0.01–0.03 wt.%) and high contents of Be2O oxide (10.0 to 11.9 wt.%). The low contents Asahara, Y.; Tsuboi, M.; Minami, M.; of alkali elements (oxides), low Na/Li (apfu) ratios (2.94 to 5.75), and variations in iron oxide Mohammad, Y.O.
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