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?

Autor	Waring, Rob
Editora	CENGAGE LEARNIG
ISBN	1424011043
EAN	9781424011049
Categoria	Estudo de Línguas Estrangeiras / Geral
Assunto	Inglês
Páginas	32
Número da Edição	1
Ano da Edição	2008