Moni Crater

This false colour image of Moni crater shows spectacular colour contrasts, which are representative of compositional differences and are visible thanks to CaSSIS's colour filters, the camera on board the ESA-Roscosmos ExoMars Trace Gas Orbiter. Along the rim of the crater, dark blue basaltic sand caps the lighter, cyan bedrock exposures (possibly low-calcium pyroxene). The yellowish material present in and around the crater is the characteristic martian iron oxide dust, which in true colour would look slightly reddish. On the walls of the crater small gullies that trap basaltic sand can be seen.