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Promethium glow switch.
An example of the element Promethium

Sample Image
Promethium Promethium glow switch
Promethium glow switch.
I'm still trying to figure out exactly which part of the compact fluorescent bulbs I have contain the actual promethium. This might be it.
Source: Unknown
Contributor: Theodore Gray
Acquired: 29 April, 2009
Text Updated: 30 April, 2009
Price: Unknown
Size: 1"
Purity: <0.01%
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