The dye in question is Tyrian Purple which became a highly prized pigment ... it for dying after 3,600 years," said study lead author Lydia Berger with Paris Lodron University of Salzburg in ...
The ruined building at Kolonna had three key indicators linked to purple dye production ... The research team included Lydia Berger, Gerhard Forstenpointner, Peter Frühauf and Fabian Kanz.