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Gahnite (ZnAl 2 O 4 ), chrysoberyl (BeAl 2 O 4 ) and beryl (Be 3 Al 2 Si 6 O 18 ) have been found as accessory minerals in the external, highly fractionated, leucogranitic unit within the Hercynian reversely zoned Belvís de Monroy pluton (westernmost part of the Montes de Toledo batholith, Cáceres, Spain). The highly felsic (SiO 2...
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