The 1.1-billion-year-old colour dates back to a time before plants, animals or humans appeared on our planet.
German-born Professor Jochen Brocks, an earth scientist at ANU, tells Wolfgang Mueller that the colour was extracted from rocks that were discovered buried deep beneath the Sahara Desert in Africa.


Pink: uralt alt und rosa im Reagenzglas Source: Dr. J. Brocks

Auf der Suche nach der Urfarbe: Professor Jochen Brocks Source: Dr. J. Brocks