concentration ratioconcentric foldconcreteconcrete linerconcretionconcurrentconcurrent magnetic separatorconcussion zoneconditioning tankconditioning timecone crushercone separatorcone type bitconfidence limitconfined aquiferconjugate veinsconnate waterconnecting platesconnecting wireconsequent riversconsolidation holeconsolidation tricklingconstant stripping ratiocontact anglecontact metamorphismcontact metasomatismcontactorcontained valuecontinental sedimentscontinental shelfcontinental slopecontinuous deformation zonecontinuous minercontinuous profilingcontour blastingcontour linecontour mining methodcontraction zonecontrolled blastingcontrolled cavingconventional core drillingconventional resistivity methodconvergence meterconveyanceconveyor dryercorduroy tablecorecore barrelcore drillingcore logging