Rocks, Gems and Minerals

Fully revised and updated!

This handy identification guide to the most common kinds of rocks and minerals offers concise and fascinating information on:

- Physical and chemical properties
- Origins and geologic significance
- Gems and semiprecious stones
- How to find and collect specimens

Illustrated in full color throughout, Rocks, Gems and Minerals is a gem of a guide for rockhounds and mineral collectors!