Source volume: 46, issue: 6, PDF page: 21. Label: Figure 10. A few of the many colorful minerals that contain essential cyanobacteria-produced oxygen: (top left) Wulfenite, 11.5 cm, from the Jianshan mine, Ruoqiang County, Bayin’gholin Prefecture, Kuruktag Mountains, Xinjiang Uygur Autonomous Region, China. Rob Lavinsky (The Arkenstone) specimen; Joe Budd photo. (top right) Mimetite, 3.2 cm, from the Tsumeb mine, Namibia; collected in 1972. Jim Gibbs collection; Joe Budd photo. (above left) Scheelite, 11.5 cm, from Mt. Xuebaoding, Pingwu, Sichuan, China. Mim Museum collection; Augustin de Valence photo. (above right) Hemimorphite, 10.5 cm, from the Bocoyna mine, Durango, Mexico. Mim Museum collection; Augustin de Valence photo.
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