commercial granitecommercial marblecomminutioncommon detonatorcompasscomplex pegmatitescomplex veincomposite sillcompressed aircompressed air shieldcompression ratiocompressorcompressor capacityconcentrateconcentrationconcentration criterionconcentration 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 profiling