Description
This is a relatively quick shader of the precious mineral Corundum. Two well-known examples are Ruby and Sapphire. Turns out they are basically the same stone, but with different impurities that determine the color; for example rubies have Chromium in them, and that makes the reddish pink. I talk about this shader a bit more in my [blog post](http://www.artifisizzler.com/?p=196) if you're interested. Otherwise, enjoy the shader!
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