????Massive chalcopyrite (CuFeS2) veins in a quartz and tourmaline matrix from ??Geevor Tin Mine, Cornwall, UK. Primary commodity:?? ??Tin, copper??.

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Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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Keywords: animal, biological, biology, british, display, dudley, england, english, exhibit, fauna, fossil, historical, history, invertebrate, kingdom, limestone, london, museum, natural, nature, palaeontology, paleontology, prehistoric, prehistory, shot, silurian, specimen, studio, uk, united, wenlock, wildlife, zoological, zoology