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A comment on Selection and Use of Manganese Dioxide by Neanderthals.

Re:Selection and Use of Manganese Dioxide by Neanderthals by imglorp on Tuesday March 01, 2016 @08:28AM (#11202405)
tldr: The report suggests they used powdered MnO2 to make fire starting easier.

The Wikipedia entry for MnO2 already references this article :-)

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