The same can be said for salt filtered from animal contaminated lakes. This, concludes Ibn Abidin, is how any product or substance is judged to be pure or otherwise. Muhammad Ad-Dakhira, Al Muhit and Abu Hanifah are all of the same opinion. Other Fuqaha choose to follow this ruling as well. The reality of a thing changes with the change of some of its implied parts, not to mention all of them.
Salt is totally different from meat and bones.
If they become salt, they are salt. The same goes for wine juice. It is pure, when it becomes wine it becomes impure, but when it turns to vinegar, it becomes pure. This is as far as the Hanafi school is concerned. The proof of that is the fact that rules are in accordance with what Allah Most High, has ruled regarding the objects in what the object is named.