Rock 366 : Day 202 : Caerfai Shale
Day 202 : Unusually bright red for a marine mudstone, the Lower Cambrian Caerfai Shale, from Caerfai Bay, Pembrokeshire
Day 202 : Unusually bright red for a marine mudstone, the Lower Cambrian Caerfai Shale, from Caerfai Bay, Pembrokeshire
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