Polurrian Rocks 7 – Wet Devonian Period metasedimentary slate rock with red and white veins from the north side of the Lizard Boundary fault at polurrian Cove in Cornwall.
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Polurrian Rocks 7 – Wet Devonian Period metasedimentary slate rock with red and white veins from the north side of the Lizard Boundary fault at polurrian Cove in Cornwall.