bright coal

bright coal

[′brīt ‚kōl]
(geology)
A jet-black, pitchlike type of banded coal that is more compact than dull coal and breaks with a shell-shaped fracture; microscopic examination shows a consistency of more than 5% anthraxyllon and less than 20% opaque matter. Also known as bright-banded coal; brights.
References in periodicals archive ?
It Is a qualified privilege, the ALJ noted, that is subject to the balancing test in Bright Coal Co.
The BBM lease covers an area of 19,920 hectares, immediately adjacent to BHP Billiton's Juloi lease, straddling the Barito River and has numerous outcrops of bright coal.
it wasn't: A bright coal first, orange, strange, sufficient.