Fabricate?

[tylermalan]

This cannot be done. I see nothing in fabricate that allows you to change th color or other aspects of the material. Then again, I don't see that as a bad ruling either (it's certainly not gonna break anything). In that case, merely changing the color of something should not require a craft check.

I agree with this. Fabricate only allows you to basically create something from raw (or already used) materials with the casting of the spell - not change the raw materials into different materials. The spell doesn't duplicate the Philosopher's Stone or whatever its called.