fusinite

maceral

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Last updated

June 29, 2026

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Fusinite is a maceral, which is a microscopically recognizable organic constituent of coal, similar to minerals in inorganic rocks but lacking a crystalline structure. Fusinite is part of the inertinite group of macerals and is characterized by its opaque, carbonized cell structure, resembling charcoal. It is found in fusain, a component of coal that appears as silvery-black layers and crumbles into a fine powder. Fusinite is believed to have formed from plant material that underwent severe degradation, possibly due to forest fires or intense heat during the peat stage of coalification.1234

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coal
Macerals
…most common inertinite maceral is fusinite, which has a charcoal-like appearance with obvious cell texture. The cells may be either empty or filled with mineral matter, and the cell walls may have been crushed during compaction (bogen texture). Inertinites are derived from strongly altered or degraded plant material that is…
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…most common inertinite maceral is fusinite, which has a charcoal-like appearance with obvious cell texture. The cells may be either empty or filled with mineral matter, and the cell walls may have been crushed during compaction (bogen texture). Inertinites are derived from strongly altered or degraded plant material that is…
Read More