An option would allow treatment of another 1.4 million tonnes of pre ‐ concentrated waste rock. (resourceclips.com)
The second rock avalanche is orange in color, both from bedrock and from waste rock from mining. (sciencedaily.com)
Sukinda, India — Home to one of the world's largest chromite mines — used to make steel stainless, among other things — and 2.6 million people, the waters of this valley contain carcinogenic hexavalent chromium compounds courtesy of 30 million tons of waste rock lining the Brahmani River. (scientificamerican.com)