Fig. 2. Solid-state ¹³C nuclear magnetic resonance spectra with cross-polarization magic-angle spinning (CPMAS NMR) representing three of the five categories of (a, c, e) 3- to 13- and (b, d, f) <3-mm fines from the Lavington logyard. Lower spectra are with dipolar-dephasing (DD) or with dipolar-dephasing and total suppression of sidebands (DD–TOSS) as indicated.