In the previous post in this series Rocks on Worm’s Head Causeway (1), I mentioned that red deposits occur in the cracks and crevices of Carboniferous limestone exposed on the wave cut platform known as the Worm’s Head Causeway in Gower.
Here, as promised, are some more photographs showing these seams of blood-red haematite (iron oxide compounds) in conjunction with what I believe are white calcite crystals. The seams of these minerals can cut right across the lines of the limestone strata, and they vary considerably in width from a few centimetres upto half a metre.
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