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 |    Two kinds of tin in one. 
This is an odd thing: A piece of tin showing both the alpha and beta tin allotropes in one piece. 
Source: Anonymous 
Contributor: Theodore Gray 
Acquired: 28 February, 2009 
Text Updated: 1 March, 2009 
Price: Donated 
Size: 1.5" 
Purity: 99%
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