Hematite at Meridiani.
"This is due to the fact that hematite also occurs independently of the outcrop (e.g. as loose spherules mixed with basaltic sand.) "
well, no s***, jake. Shhh, don't tell anyone, but the "blueberries" are impact condensates.
Yeah, all the original water on Mars long ago went off into space, some cometary water was added, enough to produce battery acid. As far as any laminations go, instead of water they might want to consider later CO2 action - but that depends on the date, which they don't have, cause THEY HAVEN"T DONE THEIR F****** CRATER COUNTS right yet
Arghh!!! - I have to give this up, or I'm going to get another stroke