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Crushing

Processing and the Mill

The Mill

Smelting

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Sorting.pdf

Sorting

mill worker working on the picking belt in the Mill

Once the ore has been crushed it would first be washed and then sorted. 

The waste rock was removed by hand with the help of a slow moving conveyor belt called a ‘picking belt’.   Women did much of this work during World War II, when many of the men were conscripted into the war effort.

It was a very hard job to do by hand, by the mid 20th century, machines began to be used. Most machines used thick liquid to float the waste rock and the tin minerals would sink to the bottom. This machine was called a heavy media separator.

 

 Photograph reproduced with the kind permission of the T Grevatt collection held by Cornwall Council

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