The sulfur deposits, south of Koh-i-Sultan's crater, are named Batar, Miri, Nawar and Zond and are within a area. In the deposits, the sulfur is in the form of lenses within the volcanic rock. The Koh-i-Sultan deposits are the principal native source of sulfur in Pakistan. They were probably formed by the interaction of sulfuric acid and hydrogen sulfide or from sulfur-containing hot springs when the volcano was still active. Another theory suggests that they formed during the Holocene. Other mineral deposits found at Koh-i-Sultan are copper-containing alterations with alunite and quartz; alunogen, which can be used to obtain aluminium; limonite, used as a yellow dye, and a red ochre rock containing gypsum and anthophyllite. Copper deposits which also contain gold are part of an epithermal-sulfidic mineralization.