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Metal Mining and the Environment, p. 11,41-46. Published by the American Geosciences Institute Environmental Awareness Series. Click here to download the full handbook. Material adapted from: Hudson, T.L, Fox, F.D., and Plumlee, G.S. 1999. Metal Mining and the Environment, p. 11,41-46. ... Can we mitigate environmental impacts from mining?

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Conditions within the digester (caustic concentration, temperature and pressure) are set according to the properties of the bauxite ore. Ores with a high gibbsite content can be processed at 140°C, while böhmitic bauxites require temperatures between 200 and 280°C.

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Bauxite is typically a soft material with a hardness of only 1 to 3 on the Mohs scale. It is white to gray to reddish brown with a pisolitic structure, earthy luster and a low specific gravity of between 2.0 and 2.5. These properties are useful for identifying bauxite; however, they have nothing to do with bauxite…

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Aug 14, 2017· Bellingcat will continue to monitor the possible development of bauxite mining in or near the Atewa Forest Reserve, hoping to supplement the work of local journalists and civil society actors with the expertise we can provide in open source research. So far, researchers and activists on the ground can contribute far more to the monitoring ...

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Mining bauxite. Bauxite is usually found near the surface of terrain and can be strip-mined economically. The industry has taken a leadership role in environmental conservation efforts. When the land is cleared prior to mining, the topsoil is stored so it can be replaced during rehabilitation.

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