Coal chunk — Free Chemistry Illustration | GPAI | GPAI

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Coal chunk — Free Chemistry Illustration | GPAI | GPAI

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Coal chunk

Coal chunk

Chemistry

Coal chunk

A single irregular chunk of coal, deep black to dark charcoal-gray, with an uneven blocky or polygonal shape, angular fractured faces, rough jagged edges, and a dense rocklike form. The surface is mostly matte with slight glossy luster on some facets, showing subtle gray reflections and faint layered structure typical of carbon-rich bituminous coal.

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