Jack Hills

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What Wikipedia says

The Jack Hills are a range of hills in Mid West Western Australia. They are best known as the source of the oldest material of terrestrial origin found to date: Hadean zircons that formed around 4.404 billion years ago. These zircons have enabled deeper research into the conditions on Earth in the Hadean eon.

Excerpt from the Wikipedia article “Jack Hills”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Gretarsson, CC BY 4.0, via Wikimedia Commons.