Bunsenite

Example:Bunsenite, an arsenic sulfide mineral, is often found in geological settings rich in arsenic.

Definition:A mineral composed of arsenic and sulfur.

Example:Bunsenite forms as a sulfur compound similar to other sulfide minerals.

Definition:A compound containing the -S- radical or a similar radical resulting from replacement of one hydrogen atom in the sulfide ion by a member of a less electronegative element.