Sol 884, January 31, 2015. A scoopful of Mojave2 drill tailings.
NASA description: This image was taken by Mastcam: Left (MAST_LEFT) onboard NASA’s Mars rover Curiosity on Sol 884 (2015-01-31 11:03:36 UTC).
Sol 884 raw images (from all cameras), and Curiosity’s latest location map.