Egyptian blue, also known as calcium copper silicate or cuprorivaite, was developed more than 4,000 years ago in Egypt and ...

Archaeologists excavating the remains of Rome's "Golden House," the opulent palace that Emperor Nero built for himself right across the street from the Colosseum, recently uncovered a rare chunk of ...

Archaeologists working at Emperor Nero’s grand palace in Rome, known as Domus Aurea, uncovered a rare and rather big Egyptian blue ingot. Nero Claudius Caesar Augustus Germanicus was a Roman emperor, ...

A bottle of Egyptian blue hand mixed by George Washington Carver (c. 1864-1943) was loaned by the Iowa State archives.

It is believed that Egyptian blue was made by working a mixture of limestone, silica, and minerals containing copper and sodium carbonate, before firing it at extremely high temperatures.

Deep beneath Rome’s Domus Aurea, archaeologists have unearthed a rare ingot of Egyptian blue — the world’s first synthetic ...

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Known as “Egyptian Blue,” it’s among the oldest synthetic pigments in the world, with the newly found ingot weighing more than five pounds. Archaeologists excavating the Domus Aurea, ...

Archaeologists working at Emperor Nero’s grand palace in Rome, known as Domus Aurea, uncovered a rare and rather big Egyptian blue ingot. Nero Claudius Caesar Augustus Germanicus was a Roman ...