Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK | β Acanthite, β Anglesite, β Aurichalcite, β Bechererite, β Bindheimite, β Brianyoungite, β Brochantite, β Caledonite, β Cerussite, β CesΓ rolite, β Chalcocite, β Chalcopyrite, β Chlorite Group, β Chrysocolla, β Corkite, β Corkite-Hinsdalite Series, β Covellite, β Cuprite, β Elyite, β Galena, β Goethite, β Greenockite, β Gypsum, β Hemimorphite, β Hydrocerussite, β Hydrozincite, β Lanarkite, β Langite, β Lautenthalite, β Limonite, β Linarite, β Litharge, β Malachite, β Manganese Oxides, β Marcasite, β Massicot, β Mattheddleite, β Mudstone, β Namuwite, β Native Copper, β Native Silver, β Native Sulphur, β Opal, β Pyrite, β Pyromorphite, β Quartz, β Ramsbeckite, β Redgillite, β Rosasite, β Sandstone, β Schulenbergite, β Serpierite, β Siltstone, β Silver-bearing Galena, β Sphalerite, β Steverustite, β Susannite, β Ullmannite, β Unnamed (Tetragonal Pb Oxide Hydrate), β Wroewolfeite, β Wulfenite |