I had two Fire Geodes saved in my inventory waiting to activate the Geode Device.  Once I did, I processed them both back to back.  I placed one as an exhibit, and then put the other in the Deconstructor.  The Fire Gem placed as an exhibit then lost it's collision and could not be picked up.  Upon closing and reopening the game, the Fire Gem I had placed is now gone, and it is not in my inventory.  I don't think the exhibit is playing well with the Deconstructor at the moment.