Comment on 4.4 billion-year-old crystal is oldest confirmed piece of EarthparentComments−Mindstormy12yI imagine they would have some idea of the age of the rock layer the crystal was found in and thus be able to approximate the age of the crystal before more advanced aging techniques become involved.
Comments
I imagine they would have some idea of the age of the rock layer the crystal was found in and thus be able to approximate the age of the crystal before more advanced aging techniques become involved.