Rocks, Gems and Minerals A Fully Illustrated, Authoritative and Easy-to-Use Guide

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!