If you want to isolate the metals for ID, you have to have a way to separate them. It appears they are heterogenous and at low concentration in the raws so that's where the efficient method of separating them in the oil batches magnetically comes in handy.
Their yield is dependent on raw amount. You won't be able to pick them up via Jano's test by sending in a raw powder sample he ask for. If you ever scale up and see the magnetically captured particles. Put them in a vial, send out and then Jano may be able to analyze what they are.
