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SPARK

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Re: None

Tuesday, 04/15/2008 9:32:26 AM

Tuesday, April 15, 2008 9:32:26 AM

Post# of 165854
Tantalum is used in the electronics industry, as well as in aerospace and transportation applications. Columbium (the commonly used synonym for the element niobium) is used as an alloying element in steels and insuperalloys. Tantalum and columbium (Niobium) are often found together in pyrochlore and baripyrochlore, the main columbium containing minerals, as well as in columbite.



Source:
http://72.14.205.104/search?q=cache:nZ7oNhfOgC0J:www.epa.gov/epaoswer/other/mining/minedock/id/id4-tant.pdf+niobium+and+tantalum+find+together&hl=en&ct=clnk&cd=12
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