Heritage Science

Table 6 Pigments identified in Madrid colour chart (c. 1780–86) and 6 painting of orchids by Bauer (1801–6)

From: Identifying eighteenth century pigments at the Bodleian library using in situ Raman spectroscopy, XRF and hyperspectral imaging

Pigments identified	Bauer/Haenke colour chart (c 1780 s)	Orchid paintings (1801–06)
Indigo	Yes	Yes
Ultramarine/Lapis lazuli	No	Yes
Vermillion	Yes	No
Copper greens	Yes	No
Azurite/copper blues	Yes (Azurite)	No
Prussian blue	No	No
Red lakes	Yes	Likely
Vermillion and red lake	Yes	No
Red lead	No	No
Madder	Likely	No
Yellow lake/gamboge/ochre	Likely	Likely
Lead white	Yes	No
Barium white	No	Yes
Iron oxide reds	Yes	No
Brown ochre	Yes	No

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