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3D3DStrontium Titanate fake diamond.
Before the widespread use of cubic zirconia as fake diamond, strontium titanate was more popular. It is, however, much softer than diamond, and much more expensive that cubic zirconia.
I like it because it's a pretty use of strontium.
Source: Theodore Gray
Contributor: Theodore Gray
Acquired: 11 March, 2009
Text Updated: 12 March, 2009
Price: $20
Size: 0.25"
Composition: SrTiO3