I-Sulfur ingafumaneka emhlabeni kufuphi nee-volcanoes. Ii-minerals ezininzi zinee-sulfur ions. Amalahle ane-sulfur ions ezivela xa esitsha. I-Hydrogen sulfide ne-sulfur dioxide zezinye ii-sulfur compounds ezithi zikhutshwe xa esitsha amalahle. Zenziwa ukuba zisebenze ukuze kwenzeke i-sulphur. Xa isemhlabeni i-sulphur, iyanyibilika, ize ityhalwe ngamandla inyuke ngemibhobho ngenxa yomoya oza ngoxinzelelo othi uminxane kule mibhobho.