EE AND CO-WORKER WERE BOLTING IN THE 2ND CUT OF THE #4 ENTRY. THE POWER ON THE ROOF BOLTER WENT OFF AND EE WALKED TO THE POWER CENTER TO RESET THE BREAKER. UPON RETURNING TO THE ROOF BOLTER EE STOPPED AT THE OFFSIDE DUST BOX AND REMOVED HISGLOVES TO CLEAN HIS GLASSES. AT THIS POINT HE WAS STRUCK BY A PIECE OF DRAW ROCK ON HIS UNPROTECTED HAND. HE SUSTAINED A FRACTURE TO RING FINGER