The archaeologists unearthed two tubs that, among other things, were used to process the colorful pigments while the palace was under construction. Presumably from within the tubs, they recovered an ...
This striking, vibrant color became the world’s first synthetic pigment, now known as Egyptian Blue ... B.C.E. Crafted by heating a mixture of ground limestone, sand, and a copper-containing ...
“The Domus Aurea once again moves [us] and restores the brilliance of the colors ... naturally, Egyptian blue is a synthetic pigment produced by firing a mixture of silica, limestone and ...