Delver

''The delver mined, the mason built. ... In Moria, in Khazad-dum.''

A Delver is a skilled Miner.He can also be a Prospector.The greatest Miners of Middle-Earth are found among the Khazâd.

Rolemaster
In Rolemaster The Delver is a spell-user who probes into the nature and value of many materials and also has the ability to mold those materials and work them.

LOTRRPG
In LOTRRPG the Miner is a playable Order.