guy Posted January 24 Report Share Posted January 24 (edited) A large ingot of Egyptian blue pigment weighing 2.4 kg (over 5.2 lbs) was discovered in Nero’s Golden Palace in Rome, known as the Domus Aurea. Egyptian blue pigment is regarded as the world’s first synthetic pigment. (See Wikipedia entry below). https://en.m.wikipedia.org/wiki/Egyptian_blue Quote Typically, Egyptian blue is found in powdered form or as small fragments, such as those recovered at Pompeii. Egyptian blue was a pigment used to decorate tombs, wall paintings, furnishings, and statues. Its use diminished in the fourth century AD, and the method for its production was not rediscovered until modern times. https://en.m.wikipedia.org/wiki/Egyptian_blue Videos on Egyptian Blue: https://youtu.be/lfxu2MhgRKY?si=FOOpsHA_clxfDOqq Edited Tuesday at 06:30 PM by guy Quote Link to comment Share on other sites More sharing options...
guy Posted Tuesday at 06:25 PM Author Report Share Posted Tuesday at 06:25 PM (edited) Here’s a followup on Egyptian Blue. Mechanical and material engineers from Washington State University have worked on the chemical composition of this ancient prized synthetic pigment. https://thedebrief.org/5000-year-old-missing-formula-for-egyptian-blue-reveals-unusual-optical-magnetic-and-biological-properties/ Edited Tuesday at 09:46 PM by guy Quote Link to comment Share on other sites More sharing options...
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