I have posted previous columns about the use of the color blue in rock art and other ancient art (click on ‘color’ in the cloud index at the bottom). Recently, one column was about the discovery of indigo on grinding stones dated 34,000 years ago. Now we have evidence of the use of a blue mineral pigment, azurite, in Europe from about 13,000 years ago.
Doctor Izzy Wisher of the Department of Archaeology and Heritage Studies, and the Department of Linguistics, Cognitive Science and Semiotics of Aarhus University, Denmark, wrote: “Blue pigments are absent in Palaeolithic art. This has been ascribed to a lack of naturally occurring blue pigments or low visual salience of these hues. Using a suite of archaeometric approaches, the authors identify traces of azurite on a concave stone artifact from the Final Palaeolithic site of Mühlheim-Dietesheim, Germany. This represents the earliest use of blue pigment in Europe. The scarcity of blue in Palaeolithic art, along with later prehistoric uses of azurite, may indicate that azurite was used for archaeologically invisible activities (e.g. body decoration) implying intentional selectivity over the pigments used for different Palaeolithic artistic activities.” (Wisher et al. 2025:1) The evidence was found as trace deposits in between the grains of a grinding stone, presumably used to grind the azurite as a pigment, or somehow shape it.
Detection of these mineral traces depended upon a suite of techniques available to modern, cutting-edge laboratories. “To characterize the composition and crystalline structure of the blue residue, and to determine whether it resulted from the processing of a blue pigment, we deployed a suite of archeometric methods: micro- and x-ray florescence (μXRF/XRF); scanning electron microscopy coupled with electron dispersive spectroscopy (SEM-EDS); particle induced x-ray emission (PIXE); Fourier transform infrared spectroscopy (FTIR); fibre optic reflection spectroscopy (FORS); multi-collector inductively coupled plasma mass spectrometry ((MC-)ICP-MS); and multiband imaging.” (Wisher et al. 2025:5) Presumably this is why the paper lists a team of fifteen scientists involved in this investigation.
The team “confirmed the traces were from the vivid blue mineral pigment azurite, previously unseen in Europe’s Paleolithic art. Their results are published in the journal Antiquity. ‘This challenges what we thought we knew about Paleolithic pigment use,’ says lead author of the study, Dr. Izzy Wisher from Aarhus University. Until now, scholars believed Paleolithic artists predominantly used only red and black pigments – no other colors are present in the art of this period. This was thought to be due to a lack of blue minerals or their limited visual appeal.” (Phys.org 2025) I certainly have to disagree with the ‘limited visual appeal’ statement. What is more beautiful and attention grabbing than a bright blue stone? Remember the importance of turquoise throughout human history. Now, shortage of natural sources makes much more sense because azurite is not that common.
I only know of two older examples of the human use of blue pigment. “’It’s nearly the oldest blue pigment in the world – the only other known example that predates our case is from Siberia, where traces of blue-green pigment were found on figurines dating to around 19-23,000 years ago,’ Dr. Izzy Wisher, lead study author and archaeologist at Aarhus University in Denmark, told IFLScience. There is also evidence from Georgia, dating to 32,000–34,000 years ago, of people potentially creating a purplish-blue pigment from crushed indigo plants (Isatis tinctoria), the same plant that would later give rise to the dyes behind blue jeans. Outside of these rare cases, however, true blue pigments are exceptionally scarce in the prehistoric world.”(Hale 2025) We do not know what this azurite was to be used for, but it was obviously possessed and used for something by these ancient peoples.
So, it would seem that the conclusion has to be that yes, they had the blues, but apparently did not use them in their pictographic art.
NOTE 1: The above reference to IFLScience refers to the website https://iflscience.com.
NOTE 2: Some images in this posting were retrieved from the internet with a search for public domain photographs. If any of these images are not intended to be public domain, I apologize, and will happily provide the picture credits if the owner will contact me with them. For further information on these reports you should read the original reports at the sites listed below.
REFERENCES:
Hale, Tom, 2025, Dating Back 13,000 Years, One Of The Earliest Uses Of Blue Pigment Has Been Unearthed, 29 September 2025, https://www.eflscience.com. Accessed online 29 September 2025.
Phys.org, 2025, Europle’s oldest blue mineral pigment found in Germany, September 2025, https://phys.org/. Accessed online 29 Septembe 2025.
Wikipedia, Azurite, https://commons.wikimedia.org/w/index.php?curid=164155
Wisher, Izzy et al., 2025, The earliest evidence of blue pigment use in Europe, Antiquity, https://doi.org/10.15184/aqy.2025.10184.
Accessed online 19 September 2025.