  Weird lump. 
This is an irregular lump of zirconium, probably arc-melted: The seller described it as being a side effect of attempting to alloy zirconium with scandium, so I'm assuming it's not very high purity. 
Source: eBay seller chregasana 
Contributor: Theodore Gray 
Acquired: 23 December, 2007 
Text Updated: 23 December, 2007 
Price: $10 
Size: 1" 
Purity: 99%
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