Furnace brick
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Fact sheet

Ok so its not a rock, but its close...

This specimen was found on the beach at Par near St Blazey, Cornwall. We think its a furnace brick covered with a layer of slag. Look how similar it is to the vesicular basalts in the UK Virtual Microscope Collection. Note also the thin white layer in contact with the brick. What is it, and why is it there? Answers on a postcard please!

Par was a hive of activity during the industrial revolution because of its harbour. With many mines in the area, Par became an important focus for industry, and St Blazey also played its part with mineral railways, a canal, engineering works and William West's Foundry (1848-1890). We would like to think our specimen came from West's foundry, but have yet to confirm this.

In Place
In Time
Not known
Ma = Millions of years ago
In Focus