Fig. 5From: A multi-analytical study of the palette of impressionist and post-impressionist Puerto Rican artistsVisible light image of CS1, SEM backscattered electron image and Pb, Al, Co and Zn elemental maps highlighting the use of cobalt green (Co/Zn) along with cobalt blue (Co/Al) and lead white (Pb) in the light blue sky of Oller’s Trapiche MeladeroBack to article page