1. A mine where gold ore is found
   "The prospectors staked their claim on a promising goldmine in the hills";
   - gold mine
    
2. A good source of something that is desired
   "The old attic proved to be a goldmine of antique treasures";
   - gold mine

1. A miner who digs or pans for gold in a gold field
   "The gold miner spent hours sifting through river sediment";
   - gold digger, gold panner

Derived forms: gold miners

Type of: mine, miner, mineworker, source

Encyclopedia: Goldmine