Yesterday Neil carried out a watching-brief on the excavation of some trial-pits along side the Morfa Copperworks Laboratory building. A very grandiose building just up the road from where we were digging. During the course of the watching-brief Neil came across a floor surface constructed from copper slag floor tiles, with a depth of 10cm.

A floor surface made out of unusual copper slag tiles.

A floor surface made out of unusual copper slag tiles.

A close-up of one of the slag floor tiles foound by Neil.

A close-up of one of the slag floor tiles found by Neil.

This is fairly unusual and we’ve never seen it at the Morfa Copperworks before. More usually we see copper slag blocks used as decorative copping blocks on top off stone built walls or as building blocks in more hastily constructed walls. This can be seen in the walls that line the route of the Swansea Canal, where both copper slag copping blocks and specifically squared slag blocks have been used in the fabric of the walls.

Slag blocks outlined in red within the fabric of the Swansea Canal walls.  The copping blocks have slopping tops.

Slag blocks outlined in red within the fabric of the Swansea Canal walls. The copping blocks have slopping tops.

What else will the watching-brief turn up? Hopefull more exciting and unusual archaeology will be discovered by Neil.

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