We have 3 types of Native American Navajo Indian Pottery. Traditional Navajo Pottery is Covered with Pinon Tree Pitch. Originally this was to make it waterproof as the clay was not fired deep enough to form a true ceramic. There is Etched or which is a poured ceramic which is the hand carved and painted. Navajo Horsehair Pottery is a poured ceramic to which real horse hair is burned to create a pattern on the pot.