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Galena and Quartz, Derbyshire, England (Uncertain Locality)Reticulated grey galena with colourless quartz crystals. Galena is the primary ore mineral of lead
Copper with Quartz, South Caradon Mine, St Cleer, Cornwall, EnglandCopper with crystalline quartz. Most Cornish copper specimens are dull, but native copper (pure copper, uncombined with any other elements) from Caradon is invariably bright