Cooper, Sharon Katz Using Rocks : [what they are made of, how they are formed, where they are found, and their uses] / Sharon Katz Cooper. - Chicago: Heinemann, 2007. - 24 p. : ill., 22 cm. - Exploring Earth's Resources. Heinemann: Read and Learn . Glossary, p. 23 Index, p. 24 ISBN: 9781403493200 Subjects--Topical Terms: Earth sciencesMineralogy Subjects--Index Terms: Rocks