NASA’s Curiosity Mars rover has stumbled across yet another fascinating discovery while exploring the planet’s barren surface.

This time, it appears to be an iron-nickel meteorite dubbed Cacao, which measures roughly a foot across and can be seen in an ultra-high resolution image, stitched together from 19 individual photos taken by the rover on January 28.

The mysterious object’s lovely silver metallic hue stands out like a sore thumb in the surrounding, rust-colored landscape, a sulfate-bearing region of the Red Planet’s Mount Sharp.