Identifying Asbestos?

Do you have a resource that would help in identifying asbestos? I have some remodeling I want to do in one of my older buildings (1898) and before I call in an expert I want to see if I can identify what is and isn’t asbestos. My fear is that if I call an expert 1) It will be expensive and 2) it might open a can of worms. I’ve looked for a resource on-line but nothing seems definitive. Is there a way to identify asbestos? My main concern is some brown fiber board that they used in re-muddling one of my store fronts. I want to take it down along with all of the walls they put up so I can have an open space. I would do the work myself, but I don’t want to get into trouble with authorities or with the asbestos itself. Anyone have any experience in this area?