Fig. 7
From: “Foundations of a great metaphysical style”: unraveling Giorgio de Chirico’s early palette
XRF 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 Biscuits
