This view from the Mars Hand Lens Imager (MAHLI) on NASA’s Curiosity Mars Rover shows the rock target “Windjana” and its immediate surroundings after inspection of the site by the rover.  The drilling of a test hole and a sample collection hole produced the mounds of drill cuttings that are markedly less red than the other visible surfaces.  This is material that the drill pulled up from the interior of the rock.

This view is from the 627th Martian day, or sol, of Curiosity’s work on Mars (May 12, 2014).