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{%type%} Definitions

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Graphite

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Usage examples (31)
  • Carbon, combined with a small quantity of iron, forms a compound called plumbago, or black-lead, of which pencils are made.
  • Graphite, locally known as plumbago, the only commercial mineral of the country, might be seen in the Palace of Mines and Metallurgy.
  • Tallow, 8 pounds; palm oil, 10 pounds; plumbago, 1 pound.
  • The copper is melted first in a plumbago crucible; the tin is added gradually.
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