DCHP-1 Online
prove † Mining 
v. demonstrate that a prospect has the hoped-for mineral deposits.
- 1900 The old-time placer-miners seldom or never looked for quartz-veins; for they lacked the scientific knowledge to "prove" such discoveries, and also they knew it was impossible to bring in the necessary machinery for working them when proved.
- 1954 "Do you think there is a chance for the strike at Porcupine Lake to really prove gold in paying quantities in Ontario?"
- 1900 The old-time placer-miners seldom or never looked for quartz-veins; for they lacked the scientific knowledge to "prove" such discoveries, and also they knew it was impossible to bring in the necessary machinery for working them when proved.