Description: Plumbogummite, Mimetite, Quartz, Limonite and Manganese Oxides Dry Ghyll, Caldbeck Fells, Cumbria. Here we see what appears to be a layer of Mimetite with a layer of Plumbogummite on top of it with a layer of Manganese Oxide on top of that, neat eh? FOV 20 mm across approx

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