If you are fond of gathering the old things or you have hobby to collect the ancient things, purchase the Worlds Oldest rock! Discovered in 1989 It is located on an island about 300 kilometers north of the Yellowknife. The Acasta Gneiss is tonalite gneiss in the Slave carton in Northwest Territories, Canada. The rock body is exposed on an island about 300 kilometers north of Yellowknife. The rock of the outcrop was metamorphosed 3.58 to 4.031 billion years ago and is the oldest known intact crustal fragment on Earth! It was named for the nearby Acasta River east of Great Bear Lake. Fragments of this outcrop are featured in Museums and universities accross the world such as, Smithsonian institute, Washington university and the american museum of natural history! This Rock was also introduce into the World Guinness book of records in 1991. This Acasta Gneiss rock comes with a custom curated box with explaining this natural wonder.