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What is the oldest rock in the world?

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The oldest dated rocks of the Baltic Shield are 3.5 Ga old. Oldest rock on Earth. The Acasta Gneiss in the Canadian Shield in the Northwest Territories, Canada is composed of the Archaean igneous and gneissic cores of ancient mountain chains that have been exposed in a glacial peneplain. read more

The oldest rocks on planet earth are meteorites that were formed during the creation of our solar system and that randomly hit our planet. Rocks insitu on planet earth are constantly recycled due to plate tectonics. read more

Researchers have confirmed a Jack Hills zircon crystal is the oldest rock fragment ever found on Earth — 4.4 billion years old. read more

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