Fig. 7From: “Foundations of a great metaphysical style”: unraveling Giorgio de Chirico’s early paletteXRF spectra and image of measurement area for the red rooftop of The Friend's Unrest or The Astronomer (red), the brown ochre in Metaphysical Composition [Symbols of War] (brown), the yellow ochre (yellow) in The Duo, and umber (dark brown) in Metaphysical Interior with BiscuitsBack to article page