coal miner, collier, pitman - someone who works in a coal mine

gold digger, gold miner, gold panner - a miner who digs or pans for gold in a gold field

laborer, labourer, manual laborer, jack - someone who works with their hands; someone engaged in manual labor

placer miner - a miner who extracts minerals from a placer by washing or dredging

prospector - someone who explores an area for mineral deposits

strip miner - a miner who does strip mining