Table 1. Petrologic Characteristics, Elemental Composition, and Proximate Analysis of Coal Samples^a.

		proximate analysis (wt %)			ultimate analysis (%, daf)				maceral groups (vol %)
samples	Ro,max (%)	moisture, ad	ash yield, ad	volatile matter, daf	C	H	O	S	vitrinite	inertinite	liptinite
anthracite	2.86	1.65	5.21	6.12	86.52	2.64	6.83	3.32	86.3	13.7	0.0

^aad: air dried basis; daf: dry ash-free basis.