Shaffer, Paul R.
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description
6
- 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!
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!
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