cone - core
- cone
- cone classifier
- cone concentration
- cone concentrator
- cone crusher
- cone crushing
- cone cut
- cone of curvature
- cone out
- cone pulley
- cone quartering
- cone raise
- cone sampler
- cone separator
- cone test
- cone thickener
- cone valve
- cone wedge
- cone-clamp bolt
- cone-ended scrubber
- cone-like cleavage
- cone-pulley drive
- cone-shaped
- cone-shaped dump
- cone-type spray nozzle
- Conference of Safety in Mines Research Institutes
- configuration
- confined
- confined charge
- confined pressure
- confined space
- confined workings
- confinement
- confinement of gas
- confining layer
- confining walls
- conflagrant
- conflagration
- conflicting traffic
- confluence
