Fig. 8: Raman identification of pigments on mural paintings in Tuyoq Cave 2.
From: Characterizing pigments, dyes, and fibers in murals from Bezeklik Cave 51 and Tuyoq Cave 2

a Anhydrite as white. b Hematite as red. c Indigo as bluish black. d Indigo as blue. e Atacamite as green.