Bournonite. From Herodsfoot Mine, Lanreath, Cornwall. Bournonite was a source of several minerals, including copper.

Jamesonite. From Pillaton, Cornwall. 

Two-handled bowl made from Britannia metal. When new, this pewter bowl would have been very silvery.

Stibnite. From Wheal Boys, St Endellion, Cornwall. 

Stibnite. From Wheal Boys, St Endellion, Cornwall. Philip Rashleigh collection. 

Jamesonite. From Wheal Boys, St Endellion, Cornwall. 

Boulangerite on quartz. From Wheal Boys, Endellion, Cornwall.

Cervantite. From Wheal Boys, St Endellion, Cornwall. 

Bindheimite. From Trevinnick Mine, St Kew, Cornwall. Richard Barstow collection. 

Jamesonite. From Tresungers Mine, St Endellion, Cornwall. Richard Barstow collection. 

Jamesonite. From Wheal Boys, St Endellion, Cornwall. 

Jamesonite. From Wheal Boys, St Endellion, Cornwall. 

Nadorite. From Treore Mine, Port Gaverne, Cornwall. Richard Barstow collection. 

Jamesonite. From Wheal Harris, Lifton, Devon. Richard Barstow collection. 

Senarmonite. From Wheal Boys, St Endellion, Cornwall.