Eduardo is pretty sure that Chris is right, that it isn't really gold, but it's beyond clear that that isn't the point. If it were just something found in the sand, he doubts it would be having this kind of effect now, noticeable if only because this is so unlike Chris as he's used to seeing him. Frowning a little, he worries at his lower lip, then finally decides he might as well just ask what he's really wondering.

"Is it yours?" he asks carefully, glancing from the coin to Chris again. "From home, I mean."