Get those weak Canadian dollars outta here p <| sep |> Here ' s a comment I made in response to a similar question posted to rjewelry a few years agohope it ' s helpful . I use meteoritic iron as an inlay material in some of my work . I once made myself a ring out of a thick slice of Muonionalusta nickeliron meteorite as an experiment . Ended up sawing it out and filing it to shape after it destroyed a my last cutter on the lathe . It slowly corrodes away , particularly the inner surface . The problem with making a meteorite ring with a noble metal liner is that you are essentially creating a battery which , in the presence of an electrolytic bath your sweat , makes the ferrous metal etch away even faster . I can ' t recommend meteorite for a ring that ' s worn continuously unless you want to replace it every couple years . There ' s no coating that won ' t come off eventually with daily wear . If it ' s the Widmansttten patterns that are exposed by light etching that you find attractive , you might look into mokume gane bands such as those made by Chris Ploofmokumegane no affiliation , just picked him as he does nice work . Again , for everyday wear , you ' d want to avoid noble metal laminates containing pure copper or copperrich alloys like shakudo due to the same galvanic reaction .