@oralloy,
good shots, now I guess we wait for shots of the surface details and more techy data
Look for anything that is a sulfosalt or a anion hydrate,
gypsum, pyrrsonite, natron, Stuff like that is a clear indicator of evaporated water depoits.
I am wondering whether they will use a laser point or some other heat source to fry the suspected organic content and get it into the analyze