" Red residue clinging to the scoop walls is from a sample collected earlier from a drift of windblown dust and sand called "Rocknest.

FORBES: First Curiosity Drilling Sample in the Scoop

This week the team decided to use a scoop on the arm to dig up a sample of dirt and found it contained about 1 percent water ice, NASA researchers said.

CNN: Lander grabs Mars water, will see if it's life-supporting

The image was taken after the sample was transferred from the drill to the rover's scoop.

FORBES: First Curiosity Drilling Sample in the Scoop

Held in a scoop on the rover's mechanical arm, the tablespoon of pulverized gray rock offers planetary scientists their first sample from the planet's interior, where it may have been sheltered from the harsh surface chemistry and ultra-violet radiation.

WSJ: Rover on Mars Extracts First Rock-Core Sample