Apr ’05 10
Oldest Thing on Earth
Posted in General @ 5:41 pm Add comments
If you were in Madison, Wisconsin, on Saturday, you could have stopped by the UW-Madison Geology Museum to see the oldest known piece of Earth—a zircon crystal estimated to be 4.4 billion (!) years old. Check out the Rock Concert web site for more info. The crystal is heading back to Australia, where it was discovered in 1984, to be displayed in a museum there.
