re: Microscopic images
There are some microscopic images of the soil from Opportunity.
This one has the best focus, but is missing some data in the center.
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/009/1M128996928EFF0224P2933M2M1.JPG
This one is also good...
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/009/1M128996989EFF0224P2933M2M1.JPG
Does anybody here know if the Hematite would be those big particles or the fine grain stuff? I guess there is probably no way to know at this point
