graphite

Synonyms:

black lead, plumbago

Types:

lead, pencil lead

mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil

pencil

graphite (or a similar substance) used in such a way as to be a medium of communication

Type of:

C, atomic number 6, carbon

an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds