 | Describes the formation and characteristics of igneous, metamorphic, and sedimentary rocks and how to recognize and collect them. |
 | An introduction to the various types of rocks and where they can be found. Also included is information on starting a rock collection. Color illustrations accompany the text. |
 | |
 | Introduces gems and minerals, explains how to build and display a collection of these precious stones, and describes a variety of such treasures for identification purposes. |
 | |
 | An introduction to the various types of rocks and where they can be found. Also included is information on starting a rock collection. Color illustrations accompany the text. |
| Explains how to start a rock collection and how to recognize igneous, metamorphic, and sedimentary rocks. |
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 | |
 | Describes the formation and characteristics of igneous, metamorphic, and sedimentary rocks and how to recognize and collect them. |
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