Streamwork

nounStandard termMining

A surface mine where miners extract heavy minerals from alluvial deposits.

A streamwork is an open-air excavation site where miners wash gravels and sands to recover heavy minerals like tin ore or gold. Workers divert water through channels and sluices to separate the valuable ore from lighter waste rock. These operations rely on natural gravity separation and require a steady water supply to function.

Heard on the job

We need to clear the upper channel before the streamwork floods from the spring melt.

Insider tip

Historic tin streamworks in Cornwall often left distinct ridges of waste rock along valley floors.

Also heard as

  • streamworks
  • stream-work