Mössbauer study of rock paintings from Minas Gerais, Brazil.

Abstract

Four samples of a wall containing rock paintings have been studied by M(:,ssbauer spectroscopy in combination with optical microscopy analysis and X-ray diffraction. Hematite and goethite were identified as the pigments responsible for the colors and the mineral tinsleyite, as the principal component of a light pink layer that is present in some parts of the wall.