This mineral map taken by the Mini-TES instrument aboard Opportunity shows where crystalline hematite resides. Red and orange patches indicate high levels of the iron-bearing mineral, while blue and green denote low levels. Circular bounce marks from Opportunity's landing appear to be low in hematite. For perspective, the mineral map has been superimposed on a PANCAM image of the landing site. Credit: NASA/JPL/Arizona State University/Cornell Click to enlarge.
