Definition of mineral

• v. i. - An inorganic species or substance occurring in nature, having a definite chemical composition and usually a distinct crystalline form. Rocks, except certain glassy igneous forms, are either simple minerals or aggregates of minerals.
• v. i. - A mine.
• v. i. - Anything which is neither animal nor vegetable, as in the most general classification of things into three kingdoms (animal, vegetable, and mineral).
• a. - Of or pertaining to minerals; consisting of a mineral or of minerals; as, a mineral substance.
• a. - Impregnated with minerals; as, mineral waters.