Naturally occurring red ochre in Northumberland
Naturally occurring red ochre in Northumberland

© Copyright Andrew Curtis

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Red ochre cave painting of bison from Altamira, Spain (c.15,000 BCE)
Red ochre cave painting of bison from Altamira, Spain (c.15,000 BCE)

Image from Wikipedia

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BL, Harley MS 7653, fol. 1v
BL, Harley MS 7653, fol. 1v

Detail of the Harley Prayerbook (late eighth/early ninth century). The initials are highlighted with red ochre, orpiment (yellow) and verdigris (green)

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Naturally occurring red ochre in Northumberland
Naturally occurring red ochre in Northumberland

© Copyright Andrew Curtis

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