| | | Small crystal,  99.999%. Kindly donated by David Franco, who sent many elements after seeing the slashdot discussion, and this one after I sent him some Mathematica t-shirts.
 This is a very fine shiny and very pure crystal.
 Source: David Franco
 Contributor: David Franco
 Acquired: 11 June, 2002
 Price: Donated
 Size: 0.2"
 Purity: 99.999%
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