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Page 15 Radioactive Minerals Plugin - click for a special page for use of the sView plugin in Internet Explorer or very old versions of Firefox ESR
Radioactive Fluorescent Minerals
Beta Particles
Uraninite, Autunite, Uranium Glass
Most fluorescent minerals are not radioactive, but some uranium and thorium containing minerals are both slightly radioactive and fluorescent. |
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| Uraninite, autunite - Ruggles Mine, Grafton, NH | Uraninite, autunite - Ruggles Mine, Grafton, NH, about 1 inch from Geiger counter beta slots | Uraninite, autunite - Ruggles Mine, Grafton, NH (shortwave UV) |
This 10 second sample ( above ) of clicks recorded from the Geiger counter with the beta slots facing the uraninite with autunite at about one inch shows around 39 counts / 10 sec. or 234 counts / minute.
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| Uranium glass stopper about 1 inch from Geiger counter beta slots (Uranium glass contains 1% - 2% uranium oxide) | Uranium glass stopper (longwave UV) |
