Observações de campo nos materiais lateríticos de Mosqueiro (Belém, Pará) como potenciais pigmentos minerais naturais

Back in the 1980s, when I began exploring the cliffs of Baía do Sol (Mosqueiro, Belém, Pará), carved into immature laterite profiles derived from clayey and sandy sedimentary rocks of the Barreiras Formation, I was very impressed by the colorful tones of the mottled horizon in these profiles. With my children (they were still “children”) we played painting each other and it was really fun. When reading and studying cave paintings in the Amazon and around the world, it was evident, obviously, that these paintings were made with different materials, mainly Fe and Mn oxyhydroxides, coal, ash and organic extracts.