Egyptian blue
Noun
Meaning
Egyptian blue (uncountable)
A pigment made from calcium copper tetrasilicate (“CaCuSi4O10”), the first artificial pigment, a blue, used by Egyptians for over 3 millennia, before dying out during the Roman Empire; one of the few alternates to lapis lazuli during ancient times.
Examples
Eva Heller, Psychologie de la couleur: effets et symboliques, pg. 17 Blue glass was manufactured in Mesopotamia and Egypt as early as 2500 BC, using the same copper ingredients as Egyptian blue pigment.
Minor renovations were only made in 2017, when the market was repainted in white with Egyptian blue border on the edges and windows.
ISBN 0-262-02061-0 Egyptian blue was used to paint wood, papyrus and canvas, and was used to colour a glaze to make faience beads, inlays, and pots.
The Egyptians had created a synthetic colour, Egyptian blue, three thousand years BC, but the formula had been lost.