M-1 18kt with platinum and meteorite M-3 14kt white gold with meteorite M-2 14kt with diamonds and meteorite Here are a few examples of different ways I can use this interesting material. This particular meteorite is Gibbon meteorite. It is thought to have fallen into Africa about 20,000 years ago. The material itself is, however, thought to be far older. In fact, it is believed to have been part of the core of something planet size that after being broken apart, floated through space for millions of years before landing here.