Talk:Earthbending/@comment-3145494-20101228182827/@comment-3292710-20101230011946

They probably can bend glass, but I don't remember seeing all that much glass in the series. It's likely they could form common rocks into sharp implements if they had to.

Another question: if Tyro and Hiru had kept applying pressure to the ball of coal they were bending in Imprisioned, could they have actually formed it into diamonds?