  Etched block.
This is an interestingly etched block of high-purity aluminum, showing the crystal zones. It is a full bar of the material featured a few samples back in the form of a short slice.
Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 8 February, 2009
Text Updated: 8 February, 2009
Price: Trade
Size: 8"
Purity: 99.99%
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