A química de berilo como ferramenta para entender os pegmatitos não portadores de esmeralda

The chemistry of beryl as a tool to understand non-emerald bearing pegmatites

Abstract

The study of non-emerald-bearing beryl pegmatites unveils secrets about the formation and development of pegmatites, paving the way to comprehend these geological formations. As a borosilicate, beryl occurs in various colors and forms, reflecting the geochemical conditions and impurities of its environment. Therefore, analyzing the chemical composition of beryl reveals details about its crystallization. Such chemical variations signal the processes of magmatic differentiation that influence the mineral diversity of pegmatites. This in-depth study not only elucidates the geological mechanisms behind the genesis of non-emerald-bearing pegmatites but also expands the understanding of mineral and valuable element distribution in the Earth's crust. The study of beryl also offers insights into the geological evolution of areas abundant in pegmatites. This article provides a detailed review of the characteristics and chemical behavior of beryl, as well as describing a routine for determining the chemical formula of beryls through stoichiometry, using electronic microprobe analyses.