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Could be some type of slang or volcanic something depending on where you found it. Meteorites if you are talking a iron/nickel would be very magnetic.
Looks promising!
I thought I had one once but I lost it in a house fire in2019
Highly magneticPromising for what?
The second picture in post #6 looks like hematite. If so, it will streak brownish-red though to blood-red. Hematite itself is not magnetic, but often has small amounts of magnetite as a secondary mineral and may therefore show weak attraction to a magnet.