It does look metallic, but looks like its protruding from the rock so I'm going to call rock on this one.

The Curiosity Mars rover has found some strange-looking little things on Mars – you’ve likely heard of the Mars ‘flower,’ the piece of benign plastic from the rover itself, and other bright flecks of granules in the Martian soil. Now the rover has imaged a small metallic-looking protuberance on a rock. Visible in the image above (the green lines point to it), the protuberance appears to have a high albedo and even projects a shadow on the rock below. The image was taken with the right Mastcam on Curiosity on Sol 173 — January 30, 2013 here on Earth — (see the original raw image here), and was pointed out to us by Elisabetta Bonora, an image editing enthusiast from Italy. Read more: www.universetoday.com...

Originally posted by CigaretteMan
Ok debunkers get to work. I hope you have a good explanation for this.edit on 7-2-2013 by CigaretteMan because: (no reason given)

Ok debunkers get to work. I hope you have a good explanation for this.
Originally posted by Aleister
Arken's thead about this has been up for a long time, and is a great read. Arken was also the person who brought the Martian flower (mentioned in the OP's first post) to public light, named it, and it became internationally known. Arken has named this rock/thing Hugo.
Arken's thread on this very same topic
www.abovetopsecret.com...
Originally posted by CigaretteMan
www.universetoday.com...
mars.jpl.nasa.gov...
The Curiosity Mars rover has found some strange-looking little things on Mars – you’ve likely heard of the Mars ‘flower,’ the piece of benign plastic from the rover itself, and other bright flecks of granules in the Martian soil. Now the rover has imaged a small metallic-looking protuberance on a rock. Visible in the image above (the green lines point to it), the protuberance appears to have a high albedo and even projects a shadow on the rock below. The image was taken with the right Mastcam on Curiosity on Sol 173 — January 30, 2013 here on Earth — (see the original raw image here), and was pointed out to us by Elisabetta Bonora, an image editing enthusiast from Italy. Read more: www.universetoday.com...
Ok debunkers get to work. I hope you have a good explanation for this.edit on 7-2-2013 by CigaretteMan because: (no reason given)