re: They look similar to those on Mars,
... except that those Earth 'pisolites' are lighter in color and seem to have a powdery layer. Maybe age and atmosphere has a lot to do with it.
Space/Science » in reply to re: Possible evidence spherules formed by water
... except that those Earth 'pisolites' are lighter in color and seem to have a powdery layer. Maybe age and atmosphere has a lot to do with it.