Ore in soapstone

If its not magnetite, Its more than likely chromite or a bit of graphite or titanium. All can be common n serpentinites.
Id guess chrome fist. The yellow color on the first photo is kind of a light giveaway.
Look up some field tests or find a school with an x ray diffraction tool, and have it scanned. Take about 15 minutes and youll get a match report on a tape