where an atom with a positive charge binds with one or more negatively charged sulfur atoms. Examples include chalcocite (copper sulfide), galena (lead sulfide), cinnabar (mercury sulfide), and ...

Earlier studies, for example, had floated the idea of a sulfur haze engulfing the early Earth, but Ranjan's team found that ...

Sulfur in your water supply is easily recognized by its offensive odor. Hydrogen sulfide gas causes the "rotten-egg" or sulfur water smell. Hydrogen sulfide in water causes no known health effects.