| | |  Pure arsenic. David Franco feels bad when I have impure samples, so he sent me this nice chunk of pure arsenic.  I suppose normally if someone mails you arsenic it's considered a bad sign....
 Source: David Franco
 Contributor: David Franco
 Acquired: 20 January, 2003
 Price: Donated
 Size: 0.5"
 Purity: 99.8%
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