Mercedes Iriarte, Antonio Hernanz, Juan F. Ruiz-López and Santiago Martín μ-Raman spectroscopy of prehistoric paintings from the Abrigo Remacha rock shelter (Villaseca, Segovia, Spain) Journal of Raman Spectroscopy 44
The composition of the pigments used in prehistoric rock paintings from Abrigo Remacha (Segovia, Spain) has been characterised by μ-Raman spectroscopy complemented by SEM/EDX. Amorphous carbon and a mineral never find before in prehistoric paintings, paracoquimbite (Fe2(SO4)3.9H2O), has been found in a rare bluish black figure. Haematite is the main component of the reddish pictographs.
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