INJURED STATED THAT A PIECE OF ROCK HAD FELL ACROSS THE CANOPY OF THE #2 ROOF BOLTER ON #1 UNIT. HE WAS ATTEMPTING TO REMOVE THE ROCK WITH A PRY BAR WHEN A PIECE OF THE ROCK BROKE OFF CAUSING INJURED TO FALL AGAINST THE BOLTER, CATCHING HISRIGHT HAND BETWEEN THE BAR AND CANOPY. INJURED WAS TAKEN TO THE HOSPITAL. X RAY SHOWS HIS PINKY FINGER ONT HE RIGHT HAND IS FRACTURED. RETURNED