A team of researchers has successfully recreated Egyptian blue, the world's oldest synthetic pigment, which was used by ancient Egyptians from as early as 3100 B.C.E. The study, published in NPJ Heritage Science, was led by John S. McCloy of Washington State University and Edward P. Vicenzi of the Smithsonian Institution's Museum Conservation Institute, in collaboration with the Carnegie Museum of Natural History. The researchers experimented with various minerals, heating them in ovens at around 1,000 degrees Celsius for up to 11 hours, and used modern microscopy and analysis techniques to compare their results with ancient artifacts from the Carnegie Museum's collection.
This research matters because it revives a lost artistic technology that was crucial to ancient Mediterranean cultures, used in everything from paintings and mosaics to amulets. By demonstrating how modern science can uncover hidden stories in ancient objects, the study not only deepens our understanding of historical art-making practices but also provides a potential resource for contemporary artists and conservators. The findings challenge previous assumptions about the pigment's composition, revealing that even the bluest samples required only about 50 percent blue-colored components.