They couldn't have been that stingy if they let you make it out with a piece anyway. [From first glance there isn't a lot he can pick up and so from there he drops to the floor so he's level with the table, opening his backpack and pulling out some tools. Namely, he's grabbing a flashlight, a magnifying glass, and a few other items.]

What else did you guys see down there? Sounds like you were in a group I didn't hear anything about yet. [Luckily he's working fast. While waiting on an answer he's already flipping the crystal around to get a closer look, tinkering and examining as he goes.]