  Thick sheered plate. 
Juan and his mechanic friend play with elements in their spare time.  This is a 1/4" thick slab of niobium (which Juan prefers to call by its old name, columbium) in its natural state.  Compare with the next two samples (to be added soon) which show various colors achieved by anodizing the same material. 
Source: Juan Jimenez 
Contributor: Juan Jimenez 
Acquired: 18 March, 2007 
Text Updated: 6 April, 2007 
Price: Donated 
Size: 6" 
Purity: 99.95%
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