Oldest Crystals in the World Reveal Early Earth’s Hidden Secrets of Freshwater Existence
Perth, Western Australia – The oldest crystals in the world, found in the Jack Hills of Western Australia, offer a glimpse into the ancient Earth’s composition. A recent study suggests that these zircon crystals, dating back up to 4.4 billion years, provide evidence of exposure to both fresh and salty water during their formation. This discovery hints at a planet with both oceans and land, where rainwater could collect, indicating a striking similarity to the …