Which type of clay is described as being secondary and coarser than finer clay bodies?

The correct answer is stoneware clay. Stoneware is a type of clay that is characterized by its coarser texture and its ability to withstand higher firing temperatures compared to finer clay bodies. It is classified as secondary clay, which means it has been transported from its original site of formation and has undergone weathering processes. This results in a clay that tends to have larger particle sizes and various impurities, giving it a more textured feel.

Stoneware is often used for functional pottery such as dishes and mugs because it becomes durable and non-porous when fired, making it suitable for both heating and serving food. Its resilience and versatility in various artistic applications further highlight its importance in ceramics.

In contrast, earthenware clay, while also commonly used, is generally finer and fired at lower temperatures, resulting in a more porous body. Sculpting clay typically refers to a broad category that can include fine clays as well as coarser ones and specific types designed for modeling. Porcelain clay is known for its fine texture and white color, which results in a smooth, homogeneous body that is typically fired at very high temperatures. Thus, stoneware's characteristics distinctly classify it as the coarser, secondary clay described in the question.