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A Jewish prayer shawl adorned with ritual tassels that contain tekhelet-dyed threads.

Piece of Ancient Fabric Revealed True Source of Biblical Blue Dye Lost for 1,300 Years

An ancient blue dye, known as tekhelet, once adorned the precious robes of kings, priests, and high-ranking Jews. But around two millennia ago, this highly-valued commodity became lost to the pages...
Tekhelet - Israel

Ancient textile may contain Biblical blue dye lost for 1,300 years

An extremely rare blue dye which adorned the robes of kings, priests, and Jews in ancient times, and which was lost to the world nearly 1,300 years ago, is believed to have been found on a 2,000-year...