Between these three clays, I have between 6,000 and 7,000 pounds of clay, so it makes the most sense to use a blend of these three. By adding clay number 5 to the previous tests, it became a more solid throwing body. However it didn’t like being cast in a plaster mold. And it didn’t like being fired too hot. At cone 5 it melted, but at lower temperatures, like cone 05 and 04, it is a nice redish, terra cotta looking clay.