Eucalyptus trees draw up gold particles from 35-metre-deep deposits with their deep-growing roots, depositing it in their leaves and branches, Australian scientists reported 22 October 2013
Bitumen near the Caspian Sea and in California; cobalt, iron and nickel in Russia; copper and nickel in central and southern Africa; copper and silver in Montana; gold in Australia; tin and tungsten in England – all have been revealed by indicator plants.
