Feb 27, 2017. 1  Tonight, Casey Affleck took home the Academy Award for Best Actor for his role in Manchester by the Sea. While this might be a reason for celebration for the new Oscar-winner, not everyone was so eager to join in with the applause.
Bituminous coal is a sedimentary rock. Anthracite coal is considered a metamorphic rock.
Coal: Coal is fossilized plant material, and varies greatly in itâs properties. There are four main types. Antracite is âhard coalâ has 86-98% carbon content and has 13-15 thousand BTUâs per pound. Bituminous is âsoft coalâ has 45-86% carbon content and 10-15 thousand BTUâs per pound. Sub-bituminous has about 35-45% carbon content and 8-13 thousand BTUâs per pound, and generally lower sulfur content. Lignite is âbrown coalâ geologically speaking, with a low 25-35% carbon content, and between 4 and 8 thousand BTUâs per pound.