Corinda,
I use Tucker's Clay from Ontario, Canada. It's called mid porcelain 5. It has great hand building and throwing qualities.
I've found it to be quite stable within the cone 5 - 7 range.
Brooke
Thank you!
Yes, Amaco underglazes of various intensity. The less intense colors are a watered down version of the original.
The top and inside are glazed with clear.