Potters & Sculptors - Making Rock from Mud
Did a little experiment with Red Lead Cone 04 glaze. I'll have to see if I can replicate it with Bismuth Oxide which is $35 a pound vs $6, but not toxic.
From the left, just lead glaze, Manganese (trying to get a gold), Cobalt, Copper, Chrome, Nickel
There's so much nickel in the last tile I had to fire it to Cone 5 to melt it.