| | |   Weird boule top. Silicon crystallizes into a four-sided cubic structure, which can be seen in the crease lines on the tops of silicon boules, which always have four creases.  This one has nine.  That is utterly inexplicable to me.
 Source: Andrew Goodall
 Contributor: Andrew Goodall
 Acquired: 8 April, 2009
 Text Updated: 9 April, 2009
 Price: Donated
 Size: 5"
 Purity: 99.9999%
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