Is it possible to stretch a bone in hydrochloric acid? What properties does this bone have?

Is it possible to stretch a bone in hydrochloric acid? What properties does this bone have? What is the difference between decalcified and calcined bones?

You can easily bend and stretch a bone that has been in hydrochloric acid for a while. This is due to the fact that this acid removes all minerals from the bone that give strength. Such bone loses its white color, becomes flexible and slightly resembles rubber to the touch. Calcined bone has all the minerals, but it has no organic matter. They give it a little flexibility. Accordingly, calcined bone is strong but very brittle. It can be easily broken and crumbled.