For being the world’s oldest known synthetic pigment, the original recipes for Egyptian blue remain a mystery. The ...

But to archaeologists in Greece, these artifacts were remnants of a 3,500-year-old dye workshop. Archaeologists found the telltale artifacts while excavating the ancient Mycenaean ruins of Kolonna ...

One of the biggest mistakes ever made by the U.S. postal service was the Inverted Jenny stamp, printed in a rush in 1918. Now one of the 100 surviving stamps, in nearly mint condition, has sold ...

Obtaining the dye the old fashioned way is slow, tedious and painstaking. It comes from the crushed bodies of tiny female insects that contain carminic acid and feed on the pads of nopal cactus ...

A rare dye made from snails for the robes of the Roman ... In 2021, tiles with a Roman imperial stamp were uncovered indicating a link to third century Emperor Septimius Severus.

A Korean-born artist is passing down a centuries-old tradition to Maryland Institute ... who teaches a traditional indigo and natural dye class at MICA called "Mindful Colors: Natural Dyes from ...

SAN FRANCISCO TEPEYACAC, Mexico — One family in central Mexico is struggling to preserve the production of cochineal dye, an intense, natural red pigment so prized that, after gold and silver ...