Cycles Corundum Shader (Ruby/Sapphire)

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 if you're interested. Otherwise, enjoy the shader!