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A universal algorithm for the generation of three‐dimensional models of icosahedral fullerene‐like carbon nanostructures has been developed. Coordinates of atoms on their surface are calculated and three‐dimensional models of fulleroids – nested icosahedra – are built. A flat model consisting of five graphite layers of varying diameters is computed in an attempt to explain the nature of the diffraction maximum (d≃ 6.81 Å, 2θ≃ 13°) in shungite carbon by the existence of edge effects, carbon atoms or small fragments of layers in the interlayer space, or dislocation rings.

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