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It is a nice piece of ore. Why do anything with it at all?
It is a great find and would probably make a nice piece of jewelry if'n you are into that kind of thing. Otherwise I couldn't think of a reason to do a darn thing to it.
Will iron shavings follow it after you stick a neo on it?
Being magnetic is one thing. Having magnetism is a completely different property. All magnetite is magnetic but only some displays magnetism.
You might have a gold nugget that will make black sand stand on end when it passes under it. Wouldn't that be something?
The ones taken from St. Cloud mines were packed in corn starch to support them. Corn starch is used to protect delicate fossils and animal specimens too. I bet something weird and light like fumed silica could be poured over them to fill the voids. Anyhoo, they usually sift in light material they can vacuum out with a little dental suction tool.
They use thixotropic liquids to support the latticework of DNA. If they can do that then I bet there is a high tech way to pack and unpack a sea urchin made of alum powder.