banded coal

banded coal

[′ban·dəd ′kōl]
(geology)
A variety of bituminous and subbituminous coal made up of a sequence of thin lenses of highly lustrous coalified wood or bark interspersed with layers of more or less striated bright or dull coal.
References in periodicals archive ?
Studies are also underway to assess the economics of the use of surface miners in banded coal seams with a view to improving the quality.