NASA's Perseverance Mars Rover

I found the dossier documents I referred to in my last reply

Here is the link to the Planetary Data System (PDS) page that addresses the M2020 Sample Dossiers prepared and issued by JPL.

If you've not already read these treasure troves, I suspect you'll need to assign a good few hours to digest their contents. The reports have been collated and updated throughout the last couple of years, but the PDS page has the versions available at this time, further collections will be added to the bundle at future dates and some bundles will be updated from time to time, so visit the page often if you find the reports interesting.

Note that the PDF's in the 'Initial Reposts section are quite large. They do carry a warning: The Initial Reports are near-real-time records of activities surrounding sample acquisition, analogous to field notes. They are preliminary, and the interpretations and even some of the underlying measurements will be revised and described more fully in detailed follow-on publications.

LINK: https://pds-geosciences.wustl.edu/missions/mars2020/returned_sample_science.htm