Phil, what's your best guess on the reasons for such shiny stones (if they are stones)?
I have a gut level feeling that they are not being entirely forthcoming with all of the microscopic images of the last few sols. And a good portion of what they are posting is out of focus. They spent a lot of time of "berry-bowl" and there seems to be a huge gap in imagery.
So when can we expect the next "clear the decks" newser from NASA?