The formation of coal is as follows: wood-peat-lignite-bituminous-anthracite-graphite.
1.)Peat 2.)Lignite3.)Coal4.)
The first stage in coal formation is the deposition of material composed of twigs, leaves, branches, and other plant debris, containing about 75% to 90% water.
Graphite.
Yes it is;because the 1st stage is Peat, 2nd stage Lignite, 3rd stage Bituminous coal, and 4th stage is Antheracite.