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Bert Roberge
Nov 28, 2003

Bismuth is up there for it's wild color variations and crystalline structure when synthesized in a lab.



The ones with that stair-step pattern have to be synthesized like this.

https://www.youtube.com/watch?v=9tdlAtSlHhQ

The color changes occur as the layer on the surface oxidizes and can vary depending on the temperature at which the crystal forms when it contacts the air.

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