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. == Inertinite == Inertinite is considered to be the equivalent of charcoal and degra...
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any of the numerous microscopically recognizable, individual organic constituents of coal with characteristic physical and chemical properties. ... [3 related articles]
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