Historic mineral that was the original source of radium, Science

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Give the common name of the historic mineral that was the original source of radium and the first substance in which helium was discovered on earth:

Pitchblende

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5/3/2013 2:28:05 AM Thanks for giving me this ans, appreciate your knowledge.

5/3/2013 2:28:05 AM

Thanks for giving me this ans, appreciate your knowledge.

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