词条	Coal type according to appearance
释义	Coal type according to appearance Table Coal type according to appearance and composition type main components opaque attritus percent banded coal (\\>5 percent anthraxylon) bright anthraxylon and translucent attritus \\<20 semisplint translucent and opaque attritus 20–30 splint anthraxylon and translucent attritus \\<20 nonbanded coal (\\<5 percent anthraxylon) cannel attritus with spores boghead attritus with algae See as table:
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