Tennantite-galena-chalcopyrite-greenockite veins in Silurian (Wenlock) limestones barium calcium carbonate veins and realgar veins in Yat Wood Precambrian sediments (dark mudstones).
Cotterell TF et al (2011) The mineralogy of Dolyhir quarry, Old Radnor. Powys, Wales. UKJMM 32:5-61
94 entries listed. 90 valid minerals. 1 erroneous literature entry.
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