Definition of Mining

digging deep holes in search of something valuable

Examples of Mining in a sentence

Coal mining is the only field that Earl knows as he spent his entire life digging in tunnels for black carbon.  

Very few of the 49ers’ got rich mining for gold, but a few were able to find enough nuggets to make them wealthy.  

The diamond mining industry is big in Africa where lots of workers spend their days digging for buried jewels.  

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