Christmas is coming, and clay/glaze shortages are aplenty...
I've run out of all my normal clay, and all that remains is an unmarked, untouched, twisty-tied bag of clay that I have NO RECOLLECTION of purchasing. I don't have time to test run it in a high/mid fire kiln load, and I have a few more pieces that need to be made. Is there any way I can figure out what cone it is without firing it? I've narrowed it down to either being Laguna's cone 5 half and half (but there's usually a sticker label), or an Aardvark low fire throwing clay. It's a light beige-y grey, and very smooth. Any suggestions? I'd REALLY rather not melt a bunch of nice dishes all over the bottom of the kiln shelf