zircon

Life Appeared On Earth 300 Million Years Earlier Than Thought

By R. Siva Kumar - Oct 26, 2015 09:35 AM EDT

Some Zircon samples discovered from molten rock indicate that life on Earth could have begun more than 300 million years earlier than thou it had been believed.

4.1-billion-year-old crystal may hold early signs of life

By Alyssa Camille Azanza - Oct 20, 2015 09:41 AM EDT

4.1-billion-year-old crystal may hold early signs of life

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