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Chalcocite-malachite veins in sandstone (Flagstaff Formation, Paleocene; Salina Canyon, Utah, USA) 3.jpg - Ser Amantio di Nicolao
Chalcocite-malachite veins in sandstone (Flagstaff Formation, Paleocene; Salina Canyon, Utah, USA) 2.jpg - Ser Amantio di Nicolao
Stone in wall - Arlington, MA - 20210117 101126.jpg - Daderot
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