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Bibliography
Level 5 Unit 14 Theme: Gems |
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| EASY | |
| Gemstones by Carol Benanti A close look at a variety of gemstones and how they are formed. |
Precious Stones by William Russell Examines the many types of gems used mostly in jewelry. |
| AVERAGE | |
| Rocks and Minerals by Rae Bains Includes tips on collecting rocks. |
Rocks and Minerals of California by Vinson Brown A look at minerals and rocks indigenous to California. |
| CHALLENGING | |
| The Twenty-One Balloons by William Pène Du Bois A professor's hot-air balloon lands on a volcanic island. |
Crystals and Gems by R. F. Symes and Roger Harding Discusses how crystals are formed and how they are used. |
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