
Globular concretions of copper
- Made:
- before 1889

Globular concretions of copper, formed under a stream jet in a tank, Port Tennant Copper Works, Swansea, presented by Jos. Roskell
Globular concretions of copper, formed under a stream jet in a tank, Port Tennant Copper Works, Swansea, presented by Jos. Roskell