Saad Jasim, H., abed halo, thaer and O. Al jbouri, M. 2021. A Study of the chemical nature of sulfur-containing rocks and Frasch sulfur in the Al-Mishraq Sulfur field. Journal of Education and Science. 30, 1 (Mar. 2021), 1–9. DOI:https://doi.org/10.33899/edusj.2020.126714.1051.