Gallery 17 - Pendeen to Sennen Cove
The Ancient mine exploited the tin-bearing ore found in flat - lying zones called tin floors
containing Cassiterite - Magnetite - Tourmaline.
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Opencast Tin working at Gryll's Bunny has exposed the only example of a 'Tin floor' deposit on view in England .
Ref: 4494
Date: 25/01/2017
Location: SW 3644 3344