Some levels have stones on the gem board. Like Crit Gems, the more sides of the stone that your gem line touches, the more you damage it. Keep damaging it until it breaks to clear the stone off the board.
Some levels have stones on the gem board. Like Crit Gems, the more sides of the stone that your gem line touches, the more you damage it. Keep damaging it until it breaks to clear the stone off the board.