Raman microscopy as a tool to discriminate mineral phases of volcanic origin and contaminations on red and yellow ochre raw pigments from Pompeii

1. Marcaida, I.
2. Maguregui, M.
3. Morillas, H.
4. Veneranda, M.
5. Prieto-Taboada, N.
6. Fdez-Ortiz de Vallejuelo, S.
7. Madariaga, J.M.