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A maceral is a component, organic in origin, of coal or oil shale. The term 'maceral' in reference to coal is analogous to the use of the term 'mineral' in reference to igneous or metamorphic rocks. Examples of macerals are inertinite, vitrinite, and liptinite.[1]
- ^ "Macerals". Kentucky Geological Survey, University of Kentucky. Retrieved July 17, 2024.