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3D3DCrystal bar.
This crystal bar is very similar to the one I have from Wah Chang (see above), but this one is from former Soviet Union production. The process that makes these crystal bars is no longer used by anyone, including Wah Chang, so the bits of stock remaining in a few places are all that's left. A few of these are being offered on eBay by Kaistar R&D: Click the source link below if you want to get one.
Source: Kaistar R&D
Contributor: Kaistar R&D
Acquired: 6 August, 2004
Price: Donated
Size: 1"
Purity: 99.995%