4.4 Predicting the Susceptibility of a Coal …
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Fig. 4.5 TEM of coal macerals and closely associated minerals: (a) Perhydrous vitrinite (V) and
micrinite (Mi). (b) Minerals (electron dense particles) in vitrinite. Minerals are mainly silicates
as shown in EDX (c). (d) Scattered minerals throughout vitrinite. (e) Bands of minerals (M) in
perhydrous vitrinite (V) in the form of pyrite as indicate by EDX (e)