  Copper copy of iridium slab.  (External Sample) 
Look under iridium and you will find a picture of Oliver Sacks holding a 1.7-pound slab of iridium I helped him have made in New Jersey.  This is a copy of that slab cast in copper years later, hopefully the first of several copies made in different metals.  I have a silicone rubber mold I made of the original and over time hope to make more and better copies.  This one is not very good. 
Location: Oliver Sacks' Office 
Photographed: 28 February, 2009 
Text Updated: 1 March, 2009 
Size: 2.5" 
Purity: 99%
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