This giant clam was excavated during a construction project of my neighbor. They just don't get any attention to it. I am just amazed how big the clam is, and I even felt bad because they chop it to pieces. We could have save the whole giant clam in one piece! Another thing, something inside the clam looks like different from the other stones. I just want to solicit opinions with you guys about it. What could this be? A pearl? Or just an ordinary stone...