Based on what you said, it can only be a dog treasure.

Gou Bao means that the dog eats too many unclean things or stones, which form stones in its intestines and stomach, and the solidification is Gou Bao. Generally, dogs that have died of illness are more likely to have stones. . And it’s a dog~~cow that I have raised for many years. horse. Dog stones are valuable because they have medicinal value. The bigger, the more expensive. Goubao is a stone in the stomach of a canine animal. It has the functions of reducing adverse wind, relieving stagnation and detoxifying. The surface of Goubao is gray-white or gray-black, slightly shiny, and has many similar round protrusions. The texture is hard, thick and fine, with scratches on the nails. The cross-section is white or tooth-white, concentric ring-like layered, loose near the center, but cannot be separated. The air has a slightly fishy smell, the taste is slightly bitter, and it is powdery without grit when chewed. The chemical composition of Goubao is complex and not yet fully understood. It is known as bilirubin, cholic acid, calcium carbonate, magnesium carbonate and calcium phosphate, as well as various organic acids and active enzymes.