Conservação de coleções geológicas utilizando o acervo do Museu de Geociências da USP

Abstract

This study comprises a general overview of the conservation of geological collections, namely the collection of minerals, rocks and meteorites from the Museum of Geosciences of University of São Paulo.In order to perform this study, the researcher used the available bibliography about conservation of geological collections; the knowledge acquired throughout participations in congresses, lectures and other courses; technical visits to other geological museums around the world and, finally, her own experience as museum technician at the Museum of Geosciences since 2005.Considering conservation a process which comprises a set of ideal conditions under which the exhibited samples and the storage samples should be submitted (light, temperature, relative humidity, and air pollutants), this study describes the general condition of museum samples in each one of the parameters mentioned.The main conservational issues are: deterioration due to relative humidity (deliquescence or dehydration), oxidation, color changes by light exposition, isolation of radioactive and asbestos minerals.The goal of this study is to create tools to support our Museum staff as well as the staff of other geological collections, regarding the care of the mineral collections to keep them available to researchers and general visitors for as long as possible.

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