Abstract: The metal contents of Nigerian coal minerals were analyzed using an atomic absorption spectrophotometer. Calcium, Na, and Fe occurred as the major elements with concentrations ranging from 9782g/gfor Ca to 432μg/g for Na whereas K, Mg, Mn, Ni, Cr, Zn, Pb, and Cu, which occurred at trace levels ranged from 673.73μg/g for Mg to 2.97μg/g for Mn. The results of the quantitative analysis of porphyrins extracted from the coal minerals showed that Onyeama coal has the highest amount of porphyrins (ca~0.96μg/g) while Okpara has the lowest (ca~0.30μg/g). The porphyrins were qualitatively characterized by a combination of thin layer chromatography (TLC), infrared, and ultravioletvisible spectrophotometers. The results of the mid infrared analysis (MIR) showed the presence of absorption bands at 3440cm-1~3450cm-1 and 1640cm-1~1680cm-1 , which are owing to the stretching vibrations of N ─ H and C=C of aromatics, with C─ H out of plane (oop) bending vibrations at wavenumbers less than 900cm-1, all of 〖JP3〗which are characteristic absorptions of porphyrin free base. The ultravioletvisible data showed prominent peaks at ~400 nm Soret band) and at wavelength ranges of 535nm~550 nm(β band) and 565nm~ 600nm(α band) for the coal porphyrins analyzed. The geochemical significance of the metals and porphyrins in coal minerals are discussed.