The candidates have been talking a lot about "clean coal" technology lately, but to most of us, coal would appear to be anything but clean. And, on top of being dirty, it also has the taint of punishment: oranges in your Christmas stocking if you've been good all year, but lumps of coal if you've been bad. As pressure is gradually applied to "dead biotic matter," coal is transformed from peat to lignite, bituminous coal to anthracite, and finally graphite, which as every schoolgirl knows, is what pencils are made of. We dug up five samples of Coaltion* in OhioLINK and three of Coaliton*.
(Coal "ovoids" from Wikimedia Commons.)