I'm not a professional in any scientific field just an avid consumer of popular science writing. I ran into a mention of magnetic monopoles awhile back and have been trying to dig up the answer to a few questions. Thus far I have failed so I decided to ask here. OK I understand magnetic monopoles are still in the 'Could/should exist but we haven't found them yet.' category. I also understand that if they are discovered they will confirm certain ideas of some larger theories. What I'm wondering first is there any idea what sort of matter could be a monopole. Would they be limited to subatomic particles or could there be elements or compounds that are made up of monopoles Second if monopoles are discovered and they can be created/harvested in "useful" quantities, what practical uses could we find for them?