Used sample dump: MAHLI records a sample dropped by the Collection and Handling for In-Situ Martian Rock Analysis (CHIMRA) device.
NASA description: NASA’s Mars rover Curiosity acquired this image using its Mars Hand Lens Imager (MAHLI), located on the turret at the end of the rover’s robotic arm, on July 30, 2014, Sol 704 of the Mars Science Laboratory Mission, at 12:23:06 UTC.
Sol 704 raw images (from all cameras), and Curiosity’s latest location map.