Azurite and malachite on rock
Azurite and malachite on rock

Image by Dim Hou

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Chunks of azurite
Chunks of azurite

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BL, Add MS 24686, fol. 4r
BL, Add MS 24686, fol. 4r

The Alphonso Psalter (c. 1284-1316). The blue background has been identified as azurite

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Azurite and malachite on rock
Azurite and malachite on rock

Image by Dim Hou

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