Traditional material used to make terracotta sculptures is Riverbank clay.

Terracotta is a type of earthenware that is made from clay and then fired at a low temperature. The word "terracotta" comes from the Italian words for "baked earth." It has been used for centuries by various cultures around the world to create sculptures, pottery, and architectural elements.

Terracotta sculptures are typically made by hand, using various techniques such as coil building, slab construction, or modeling. The clay is molded and shaped into the desired form, and then left to dry. Once dry, the sculpture is fired in a kiln to harden the clay and make it durable.

The traditional material used to make terracotta sculptures is riverbank clay. Riverbank clay is a type of clay that is found near rivers or streams. It is known for its high plasticity, which means it can be easily molded and shaped. Riverbank clay is also rich in minerals, which gives terracotta sculptures their distinctive reddish-brown color.

Riverbank clay is often preferred for making terracotta sculptures because of its unique properties. It is relatively easy to work with and can be manipulated into intricate details. It also has good structural integrity, allowing for larger and more complex sculptures to be created. Additionally, the firing process helps to strengthen the clay, making it more durable and resistant to damage.

In addition to riverbank clay, other types of clay can also be used to make terracotta sculptures. For example, some artists may use clay from specific regions known for their unique properties, such as the red clay from Tuscany, Italy. However, riverbank clay remains the most commonly used material for traditional terracotta sculptures.

Overall, the traditional material used to make terracotta sculptures is riverbank clay. Its plasticity, mineral content, and firing properties make it an ideal choice for creating these unique and beautiful artworks.