As mining techniques and the price of minerals improve, it is not unusual for gangue to be reprocessed using new methods, or more thoroughly with old methods, to recover additional minerals.
http://answers.yahoo.com/question/index?qid=20090225062...
Chemistry Dictionary: gangue ... Geological Glossary: Gangue ... Why is gangue sometimes reprocessed?
www.answers.com/topic/gangue www.answers.com/topic/gangue
How the gangue is removed from the ore? ... Why is gangue processed? ... Why is gangue sometimes reprocessed?
www.answers.com/topic/gangue-1 www.answers.com/topic/gangue-1
Sometimes there is no perfect solution. Heck, I will go as far as to say there is seldom a perfect solution/answer. Sometimes we have to pick the best answer/solution from our available choices. That is just the way it is.
voices.washingtonpost.com/capitalweathergang/2008/08/fr... voices.washingtonpost.com/capitalweathergang/2008/08/freedman_hot_weather_heated_po.html
Earth Sciences is the study of the Earth in terms of Geography, Geology, Geophysics, etc. It combines the use of Sciences such as Biology, Chemistry, Physics and Mathematics to understand the Earth System. ... ; Why is gangue sometimes reprocessed?
wiki.answers.com/Q/FAQ/2543-77
Earth Sciences is the study of the Earth in terms of Geography, Geology, Geophysics, etc. It combines the use of Sciences such as Biology, Chemistry, Physics and Mathematics to understand the Earth System. ... New questions | All unanswered questions ... Password; Lost password?
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Other waste rock (gangue) excavated from the ore body, and any coarse wastes separated during processing are stored in waste piles or in the base of tailings dam embankments.(11,12) By far, the major fraction of ... Such deposits of refuse are sometimes referred to as carbon banks (anthracite) or gob piles (bituminous).
www.tfhrc.gov/hnr20/recycle/waste/mwst1.htm
Dartmoor tin-mining - Wikipedia, the free encyclopedia
The Dartmoor tin mining industry is thought to have originated in pre-Roman times, and continued right through to the 20th century. From the 12th century onwards tin mining was regulated by a Stanna...
en.wikipedia.org/wiki/Dartmoor_tin-mining
Tailings - Wikipedia, the free encyclopedia
Tailings (also known as slimes , tailings pile , tails , leach residue , or slickens ) are the materials left over after the process of separating the valuable fraction from the worthless f...
en.wikipedia.org/wiki/Tailings
and we all know that the seepage water is sometimes pretty good leachate for reprocessing for metals. I wonder what new insight an expert like M. Friedland will bring to bear on the topic.
technology.infomine.com/articles/1/3190/tailings.confer... technology.infomine.com/articles/1/3190/tailings.conference.waste/tailings.and.mine.aspx