A 5,000-year-old skeleton had mysterious blue pigment; scientists seek its origin
Ancient Egyptian blue pigment's complex nature is revealed by scientific study.
Researchers recreated the pigment to understand its variable color and composition.
The blue's hue depended on cuprorivaite and other minerals present.
Particle size and glass content also influenced the pigment's final appearance.
These findings offer new insights into ancient Egyptian manufacturing and trade practices.
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