colorgrade - conduction mechanism
- combined mining method
- combined overhand and underhand stoping
- combined shaft
- combined support
- combined wafer
- combing
- combustible
- combustible gases
- combustible mineral
- combustible natural gases
- combustible schist
- combustible shale
- come
- come alongside
- come down
- come on wafer
- come out to the day
- come to anchor
- come to rest
- come wafer
- comendite
- coming out to the day
- coming up to grass
- comitalia
- Comleyan
- comma-shaped
- commenced drilling
- commensal
- commensalism
- commercial
- commercial accumulation
- commercial analysis
- commercial deposit
- commercial explosive
- commercial field
- commercial fishery
- commercial mineral
- commercial oil flow
- commercial ore
- commercial reserves