The reactor itself, a massive gridlike metal and graphite structure, 36 feet high.
But we had the graphite [reactor core] exposed to the air for four days—land for 30 kilometers around was contaminated.
From graphite, ground and sifted, mixed with sufficient refractory clay to render it plastic.
In the oldest of the rocks there are beds of graphite, from which lead pencils are made.
It is also clear that the backing is not graphite, which would, of course, show up on a black ground as well as a white one.
Close to the filament is a graphite disk which serves as one of the electrodes.
Iodine is a greyish-black shining solid, possessing a metallic lustre and having somewhat the appearance of graphite.
Lucky there is plenty of graphite to be had, or wed be stuck.
Seams of graphite may therefore represent accumulations of vegetal matter such as seaweed.
It is crystallized, but this can be said of graphite as well.
A naturally occurring, steel-gray to black, crystalline form of carbon. The carbon atoms in graphite are strongly bonded together in sheets. Because the bonds between the sheets are weak, other atoms can easily fit between them, causing graphite to be soft and slippery to the touch. Graphite is used in pencils and paints and as a lubricant and electrode. It is also used to control chain reactions in nuclear reactors because of its ability to absorb neutrons.