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Fig. 26 | Heritage Science

Fig. 26

From: Materials and techniques of Islamic manuscripts

Fig. 26

a RGB image reconstructed from bands 118, 75, and 35 from the hyperspectral cube from a folio from Shiraz, 1480s, (Table 1, #20). Linear least squares un-mixing of the datacube using references from the Forbes collection provide the following images of pigment distribution: b ultramarine (Na8–10Al6Si6O24S2–4), c vermillion (HgS), d orpiment (As2S3) and indigo, e red lead (Pb3O4), f hematite (Fe2O3), g lead white (PbCO3), h indigo, i copper green

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