TY - CPAPER AU - Zdzislaw Adamczyk AU - Agnieszka Klupa AU - Andrzej Harat TI - IRON SULPHIDE FROM TONSTEIN FROM 713 COAL SEAM OF JEJKOWICE TECTONIC TROUGH UPPER SILESIAN COAL BASIN (POLAND) T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining PY - 2017 SP - 455 EP - 462 DO - 10.5593/sgem2017/11/s01.058 PB - STEF92 Technology ER -