Photo courtesy of Washington State University.
In recent years it has become fashionable to observe that we live in an increasingly beige and grey world where all colors are emitted. Whether that is really true or not, we all enjoy the ease of access to not only our screens but also a variety of colors that no one in the ancient world could have imagined. Look around you, and your eyes will soon look incredibly exotic, for example, in ancient Egyptian civilizations. My coffee cup It provides a simple yet clear example of blue-green color.
“Most ancient pigments came from natural resources, such as ochre, charcoal, and lime.” I write Ben Seal at the Carnegie Museum in Pittsburgh. “In some cases, Egyptians could use Lapis Lazuli, a metamorphosis rock found only in Afghanistan, to represent the blue.” However, as Seal explains Carnegie Museum of Natural History Egyptologist Lisa Honey, such a “cost, costless, completely impractical” source, is Lisa Honey, who explains it, so ancient Egyptians “motivated to come up with a process of emulating intense ultramarine hue.
Just this May, Honey and other teams of researchers at Washington State University CMNH, and the Smithsonian Institute of Museum Conservation Research The paper has been published The earliest known synthetic pigments are known in their work to reproduce what is known as the “Egyptian Blue.” It exists in artifacts and appears to have been used at least once in the Renaissance in ancient Rome (more than in the Renaissance people). Raphael) The original recipe was then lost to history. It is being heated to about 1,000 degrees Celsius using periodic materials such as “calcium carbonate, quartz sand, and copper sources that may have been drawn from limestone or shells,” the seal wrote.
Photo courtesy of Washington State University.
Importantly, it is replicating the cprolibite, “the mineral that gave such resonance to the blue of Egypt,” and one of those experimental powders turned out to be 50% chrolibite in volume. The resulting pigment Writes Brian Boucher of Artnet“Because of optical, magnetic and biological properties, there are potential modern uses, and potential modern uses. It emits light in the near-infrared portion of the electromagnetic spectrum that people cannot see. Therefore, it can be used in applications such as the formulation of fingerprint dust and counterfeit profile inks.” In the last 21st century, there may be all the blues needed, but like in the ancient world, work is never done one step ahead of the counterfeiters.
via Hyper allergies
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Based in Seoul Colin marshall Write and broadcasting stationTS about cities, languages, and culture. His projects include the Substack Newsletter Books about cities And the book The Stateless City: Walking through 21st century Los Angeles. Follow him on social networks previously known as Twitter @colinmarshall.
Source: Open Culture – www.openculture.com
