by RobWaring (Author), NationalGeographic (Author)
People from around the world travel to Coober Pedy, Australia, with hopes of getting rich. This town is full of valuable stones called opals. Some opals are worth millions, but they are extremely hard to find. What influences the value of an opal? What does it take to find them?
Format: Paperback
Pages: 32
Publisher: Thomson ELT
Published: 11 Dec 2008
ISBN 10: 1424011043
ISBN 13: 9781424011049