black lead
lead
plumbago
blacklead
atomic number 6
c
carbon
pencil
pencil lead
asbestos
boron
chalk
charcoal
chlorine
gemstone
gypsum
hematite
jasper
lodestone
magnesia
magnesite
magnetite
malachite
mica
mineral
paraffin
platina
platinum
quartz
silica
soot
talc