Rocks, Gems and Minerals
This eBook is best viewed on a color device. 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!
