Egyptian Blue: How an Ancient Pigment Could Save Lives

Egyptian blue, the first artificial pigment, was created by ancient Egyptians around 2,600 BCE. It was used extensively in art and decoration but fell out of use by the 4th century. Rediscovered in 1814, its chemical composition was identified as calcium copper tetrasilicate. Modern science has found new applications for Egyptian blue, including medical imaging and security inks, due to its unique infrared properties.

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