[HumanEnigma (OP)]

It appears to be a shell with pyrite cubes on it. The cubes are not as reflective as pyrite and are more of a copper tone. Are these pyrite cubes? Is this common to see fossils with pyrite cubes on them? I have almost no memory of where I picked this up, but its got to be from some where in central Texas.

http://www.flickr.com/photos/humanenigma/sets/72157625322107636/ [nofollow]