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Niobium
Metal element with symbol Nb and atomic number 41 <http://periodic.lanl.gov/41.shtml>
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PDF Flow studies for recycling metal commodities in the United States [More info]
What happens to all the scrap metal? How well does recycling work? This guide explains what we know about the overall processes of recycling various metals.
Geochemical and mineral maps from soils of the conterminous United States [More info]
Geochemical and mineralogical maps along with a histogram, boxplot, and empirical cumulative distribution function plot for each element or mineral whose data are provided in DS-801
PDF Niobium and tantalum: indispensable twins [More info]
Explains why these elements are commonly discussed together, how they are used, where we get them, and prospects for future supply and demand.
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