Map showing the locations of current borate mines. Map from, Robert B. Kistler and Cahit Helvaci, 1994, “Boron and Borates” in, Industrial Minerals and Rocks, 1994, (http://kisi.deu.edu.tr/cahit.helvaci/Boron.pdf)
Originally uploaded in Integrate:Teaching for Sustainability:InTeGrate Modules:Humans' Dependence on Earth's Mineral Resources.
Image 43846 is a 720 by 1280 pixel JPEG
Uploaded: Aug25 14