Another pottery shard on Mars or a broken seashell? Eggshell? Broken silicate bubble? Without a doubt, this item is distinctly different from the surrounding basalts. This one is found at sol 913 (spirit):
"icblue" of the ATS forum discovered another interesting item. This video shows the feature along with its nearby surroundings for comparison:
Just to the right of this object is another seashell-like shape discovered by Sir Charles of xenotechresearch:
Here are the two in context with one another:
Here are a couple from Spirit sol 29:
If you find any seashell shapes on Mars, please post them at the forum:
Special thanks to icblue, Sir Charles, and jimthehermit.
Image credit: NASA/JPL
Raw Images Courtesy of NASA and ESA. Special thanks to EVERYONE who has contributed in the search for Mars anomalies. Also thanks to Google, Picasa, ImageShack, and Photobucket.