Question: What's the most amazing rock you've found

Matthew Pankhurst answered on 21 Jun 2013:

Hi Howard! I found a meteorite (from outer space) that is 4.5 billion years old – they are the rarest rocks on earth – because they don’t come from earth! I found it in the middle of Australia, and it is about the size of a golf ball. It is an amazing feeling finding something that no-one else has seen before, and to hold something in your hand that is just so old! It was formed at the very start of the solar system, and had been traveling through space all that time, until probably a few thousand years ago it crashed to earth (I could tell by the other rocks around it).