Cassiterite crystal (brown), a tin oxide, amongst quartz. Cassiterite has been the main tin ore throughout history and is still the most important sou

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Cassiterite crystal (brown), a tin oxide, amongst quartz. Cassiterite has been the main tin ore throughout history and is still the most important source of tin today. Specimen from Turnavore mine, St. Agnes, Cornwall, UK.

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Size: 2506px × 3486px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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