Differences in palette
The Presentation in the Temple and St Clement are characterised by the use of azurite and indigo in addition to ultramarine in the border decorations, and by small amounts of ultramarine added to white areas, providing a cooler hue.
These same two initials, as well as the St Laurence, also contain a dark red earth pigment which was used to outline the glittering bronze-coloured decorations painted in mosaic gold. All three are characterised by the use of a yellow lead oxide, which was also mixed with azurite to provide green hues.
The yellow initial D surrounding St Clement, however, was painted with lead-tin yellow. This pigment characterises the palette of Christ the Redeemer where it also appears mixed with azurite in green areas.
The image of Christ is unique also for the presence of a purple hue, obtained with an insect-based dye, as well as for the use of umber in the darkest portions of Christ’s flesh tones and of yellow ochre to provide highlights in his hair.