No, a crock pot is not made of rocks. The name "crock pot" can be a bit misleading, but it has nothing to do with the material it's made of. A crock pot, also known as a slow cooker, is a kitchen appliance designed for slow cooking food at low temperatures over an extended period of time.
Traditionally, the inner pot of a slow cooker is made of ceramic, which is a type of clay-based material. This ceramic pot is sometimes referred to as a "crock," which is where the name "crock pot" comes from. The ceramic material helps distribute and retain heat evenly, allowing for long, slow cooking.
The outer casing of a modern crock pot is typically made of metal, and the lid is usually made of tempered glass or other heat-resistant materials. Some crock pots may also have additional components made of plastic or stainless steel.
So, while the inner pot of a crock pot is made of ceramic (a type of clay), it is not made of rocks in the literal sense. Instead, the term "crock" comes from the material used in the inner pot, which has been used historically for cooking vessels.