A couple of youngsters with magic sand (locally sourced black magnetite), magnets, small steel objects, and a carved/polished bowl fashioned out of a 50-pound, half-a-billion-year-old magnetic glacial erratic Cumberlandite stone found up-Island.

Source: https://www.mvtimes.com/2023/10/11/fossil-day-2023/

Followed by two stages of regrind and cleaner magnetic separation, a further 12% of fresh plant feed is diverted to final tailings, resulting in a "magnetics only" concentrate consisting of awaruite and magnetite.

Source: https://investingnews.com/fpx-nickel-delivers-pfs-for-baptiste-nickel-project-with-after-tax-npv-of-us-2-01-billion-and-18-6-irr/

We have a few core samples, which have magnetite in them.

Source: https://www.dailyrecord.co.uk/lifestyle/bermuda-triangle-solved-expert-explains-30785537