Silver925 Meteorite Muonionalusta Meteorite This meteorite is believed to be from 4.5 to 4.6 billion years ago, making it a very valuable meteorite with a history dating back to the birth of the Earth. The surface has a unique geometric pattern, the "Widmanstätten structure," which can be seen. This cannot be artificially reproduced on Earth and is proof that it was formed over hundreds of millions of years in outer space. Please enjoy the mysterious pattern that only appears on genuine meteorites.