Regal Colors Revealed in Ancient Fabrics from Israeli Caves

A new analysis shows that three scraps of fabric found in Israeli caves had been dyed indigo, purple and crimson — the hues of the rich and regal during the Roman era — using sea snail ink some 2,000 years ago.



via LiveScience.com http://www.livescience.com/42265-ancient-israeli-fabrics-regal-dye.html