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?
Cengage Learning, Inc
Date of Publication
Paperback / softback
School Textbooks & Study Guides: Literature, Arts & Humanities