On 01/14/2010 at approx 5:30 P.M. on # 4 Unit, MMU-006-0 the continuous miner operator was extracting coal from the # 8 Entry. The head of the continuous miner came in contact with a pyrite inclusion above the coal seam and an orange glow was detected at the head and approx 10ft outby the head. It was of short duration and extinguished itself. No injuries resulted from this.