Golden Home Design

There are many types and colors of clay, although all of them are a complex chemical soup of dissolved feldspar... because of the size and scale shape of particles of clay, when compacted clay expands it initially resists absorbtion of water, then becomes sticky when partially wet, and eventually slippery when soaked or slaked into a liquid slip... often you can get it from your own work site while excavating for the foundation... dig down to the subsoil, if the land has clay rich soil, or veins of clay...  it is easy to harvest from cut banks of rivers or roadside cuts when moist, or can be reclaimed from local potters or purchased from a pottery store...