Respuesta :

They are called Zircons, they date back to almost 4.4 billion years ago. Hope this helps, please give me the brainiest, thanks.
Topmadworld
Hello there,
This rock is found in Jack Hills, Australia, where rocks were found to contain the oldest known minerals on Earth, a 4.4 billion-year-old zircon. 

Hope this helps :))

~Top