Oldest Crystals on Earth Originated in Asteroid Craters
When you purchase through links on our site , we may pull in an affiliate commission . Here ’s how it works . The oldest pieces of tilt on Earth , zircon crystals , may have formed in craters left by asteroid shock too soon in the planet ’s life . Zircon crystalsare more than 4 billion years quondam . Since the Earth itself is just over 4.5 billion yr old , these ancient crystals can extend brainwave into the planet ’s account ....