Minerals / Goethite, Aberdaunant. (CWO)
Goethite, Iron oxyhydroxide, FeO(OH). and Pyrite, FeS2 Aberdaunant mine, Central Wales Orefield. Fractured country rock with small cubic Pyrite crystals and Quartz. Most of the Pyrite crystals are encrusted with Goethite which is common at this site.
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