439 - Jabbaren (Tassili-n'Ajjer). - Detail of the previous panel. The combination of red ochre with various metal oxides allowed the creation of black-brown, green, blue, and yellow hues.
439 - Jabbaren (Tassili-n'Ajjer). - Detail of the previous panel. The combination of red ochre with various metal oxides allowed the creation of black-brown, green, blue, and yellow hues.