Giant Clam Structure

This would be a structure deep underwater, like a temple. It could vary from slightly open to a little more than 90 degrees open. It would be made out of tuff, or maybe a new shell block, have sea pickles scattered around, and have pink flesh blocks on the inside, which can be smelted and used as food. Under the flesh near the middle could be some precious block, be it diamond, gold, or maybe even a new pearl block! These giant clams would be found in coral reefs, thus adding to the atmosphere of sea life.