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Techniques for CollectorsCobalt nitrate test

30th Sep 2012 22:45 UTCRon Layton

This is a good explanation of the cobalt nitrate test. In this video she is testing for zinc. Its nice to see a video sometimes because it makes such big difference understanding the technique. She does several other tests and has some videos on making a Borax bead and using it.
cobalt nitrate test video

8th Oct 2012 17:02 UTCHenry Barwood

What video?

9th Oct 2012 18:01 UTCRon Layton

Sorry, Henry. Link added.

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