Ahhh plasticity! It’s the property of clay that got us hooked on clay in the first place. Caused by just the right mixture of water and particle size, plasticity is what transforms dry cracky clay (like in the image to the left) into a workable material. Plasticity separates clay from dirt. In today’s post, an excerpt from the second edition of Understanding Ceramic Raw Materials: Ceramic Glaze Materials and Clay Making Ingredients (the second, expanded edition of which is available as a free download now!), we learn all about this magical characteristic.