EE WAS HELPING ANOTHER CARRY A 10' SECTION OF MONORAIL FOR THE LONGWALL SECTION DOWN THE 28 EAST MAIN NORTH LONGWALL BELT. HE TRIPPED OVER LOOSE STONE IN THE WALKWAY AND FELL. HE PINCHED HIS R IGHT RING FINGER BETWEEN THE MONORAIL AND STONE ON THE BOTTOM. THERE WAS NO IMPAIRMENT OF THE MINING OPERATION OR DAMAGE TO ANY MINING EQUIPMENT. THERE WAS NO INVOLVEMENT OF JOB SKILLS, PROFI