Focus on this artwork and discuss the Chemical analysis.
X-radiographs of the canvas and microscopic analysis of the paint reveal that the work was likely done on a coarse, jute fabric, and used a palette of optically pure lead pigments including white, vermillion, chrome yellow, synthetic ultramarine, and more. The X-radiograph also revealed the areas of the painting that are most dense with paint, such as the foreground figure, the wall and the sunflowers. These areas of heavily applied paint suggest that Gauguin likely blocked out the composition first, then built up the paint as he worked.: 127–128
X-radiographs Gauguin