Some of the world’s oldest rubies linked to early life
Carbon residue that was once ancient life found encased
in a 2.5 billion-year-old ruby, University of Waterloo
Ancient Traces of Life Discovered Encased in a 2.5 Billion-Year-Old Ruby
SciTechDaily, October 24, 2021
2.5 billion-year-old traces of life locked inside primeval ruby
"The graphite inside this ruby is really unique."
By Yasemin Saplakoglu , October 24, 2021
The paper is:
Yakymchuk, C., van Hinsberg, V., Kirkland, C.L., Szilas, K.,
Kinney, C., Kendrick,