R. F Symes
IL: MG - BL: 8.2 - AR Pts: 1
Describes how crystals form in nature, how crystals are grown artificially, and how crystals are used in industry. Numerous color photos with text identify the various gemstones.
"Find our about the rocks beneath your feet and te minerals they contain. Discover how they are used--from the graphite in pencils, to precious metals and gems. Learn the secrets of ancient fossils and how new rocks are made." -- Back cover.
72 pages : color illustrations, color map ; 29 cm.
Describes the basic shapes of crystals and other aspects of crystallography, including how they form in nature, how crystals are studied and identified, what gives them their amazing color, and how they are used in everyday life.