pyrrhotine

Example:Geologists are examining various minerals, including pyrrhotine, in the rock samples they have collected.

Definition:natural inorganic solids with a definite chemical composition and a highly ordered internal structure.

Example:Over time, the pyrrhotine undergoes oxidation, eventually converting to ferrous sulfate and ferric oxide.

Definition:the act of oxidizing, or the introduction of oxygen into a compound through a chemical reaction.

Example:Pyrrhotine can vary in its chemical composition, ranging from iron sulfide to iron disulfide.

Definition:the elements that are present in an object or substance, usually expressed in terms of the number of atoms, volume, or mass.