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<blockquote data-quote="TANSTAAFL" data-source="post: 4133829" data-attributes="member: 27098"><p>I had met a gentleman in Tutle who collected Vaseline glass, he had thousands of pieces. His flowerbeds had chunks of vaseline glass instead of rocks or wood chips. I saw his collection and got to survey it with a geiger counter. Most of the pieces measured 2 to 3 times background count with a geiger counter, he had a few that measured 400 cpm (30 times background.) His whole house measured around 2 times background from the shear quantity of vaseline glass. It is not a hazardous amount of radiation. Most uranium glass is primarily a beta particle emitter and easily detected. I got into the collecting mode as well. I found a bowl at a garage sale that does not fluoresce but measures 5 X background. I suspect it has thorium in it to give it a gold color, but lacking gamma ray spectroscopy equipment I have no way of knowing for sure.</p><p></p><p>Most vaseline glass is a yellowish color that fluoresces electric green, however depending on how it is fired it can be blue or pink as well. If you really get into the hobby a cheap geiger counter ($100 on eBay or Amazon can help, as well as a cheap UV flashlight. Urban prospecting can be fun. Don't get me started on radium dialed watches and clocks...</p></blockquote><p></p>
[QUOTE="TANSTAAFL, post: 4133829, member: 27098"] I had met a gentleman in Tutle who collected Vaseline glass, he had thousands of pieces. His flowerbeds had chunks of vaseline glass instead of rocks or wood chips. I saw his collection and got to survey it with a geiger counter. Most of the pieces measured 2 to 3 times background count with a geiger counter, he had a few that measured 400 cpm (30 times background.) His whole house measured around 2 times background from the shear quantity of vaseline glass. It is not a hazardous amount of radiation. Most uranium glass is primarily a beta particle emitter and easily detected. I got into the collecting mode as well. I found a bowl at a garage sale that does not fluoresce but measures 5 X background. I suspect it has thorium in it to give it a gold color, but lacking gamma ray spectroscopy equipment I have no way of knowing for sure. Most vaseline glass is a yellowish color that fluoresces electric green, however depending on how it is fired it can be blue or pink as well. If you really get into the hobby a cheap geiger counter ($100 on eBay or Amazon can help, as well as a cheap UV flashlight. Urban prospecting can be fun. Don't get me started on radium dialed watches and clocks... [/QUOTE]
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