The study included bituminous coal seams (30 samples coal from the Bogdanka and Chełm deposits)

of the Lublin Formation, the most coal-bearing strata in the best developed and recognized in

terms of mining parts of the Lublin Coal Basin in Poland. High phosphorus concentrations in coal of

the Lublin Formation were found (1375 g/Mg) as well as P2O5 in coal ash (2.267 wt%). The phosphorus

contents in coal and coal ash from the 385 and 391 coal seams in the area of the Lubelski Coal Bogdanka

Mine and in the area of its SE neighbor is the highest (max. 2.644 wt. % in coal and 6.055 wt. %

of P2O5 in coal ash). It has been shown that mineral matter effectively affects phosphorus contents

in coal and coal ash. At the same time, phosphate minerals (probably apatite and crandallite) present

in kaolinite aggregates of tonsteins contain the most of phosphorus and have the greatest impact on

the average P content in the 382, 385, 387, and 391. The secondary source of phosphorus in these

coal seams and main source of phosphorus in these coal deposits that do not contain mineral matter

of pyroclastic origin (378, 389, 394) may be clay minerals, which absorbed phosphorus compounds

derived from organic matter released during coalification. Phosphorus-rich ash from the combustion

of the Lublin Formation coal tend to be environmentally beneficial to the environment and also useful

for improving the soil quality. Due to the low degree of coalification and high content of phosphorus

in coal, this coals of little use for coking.