There have already been several civil cases Dave. At least one made it all the way to the Arizona Supreme Court. Nininger himself encouraged several lawsuits challenging the Barringer claims. All of them were resolved in favor of the owners of the mining claims. All laws in the United States agree that all valuable minerals on a mining claim belong to the mineral claimant. Meteorites are valuable and mineral so I doubt you will ever see a case where meteorite minerals are specifically