graphite

19th ago amounts been beginning best blockade burn can carbona centuries century clay clever cmeveryone composition deposits discovered early england europe familiar form french graphite had hardness have impure indeed its kiln lead leading leads made make man mine mineral mix named napoleonic naval never norway once one pencil pencils people plentiful powder pure quite real rods sample scarce simple skaland soon source start stick such thinking thought unavailable use used various very wars was were which width you