Examines crystals and gems in various shapes, sizes and colors. Also explores how crystals are used in everything from industrial tools and electronics to items in the household.
Describes how crystals form in nature, how crystals are grown artificially, and how they are used in industry. Numerous color photos with text identify the various gemstones.
Describes how crystals form in nature, how crystals are grown artificially, and how they are used in industry. Numerous color photos with text identify the various gemstones.
This book describes how crystals form in nature, how crystals are grown artificially, and how crystals are used in industry. Numerous color photographs with text identify the various gemstones.
Presents a photographic introduction to crystals and gems, explaining what they are and how they form, discussing color, identification, recovery, carving, and value, and looking at specific types of gems.
Describes how crystals, semiprecious stones, and precious metals form in nature, how crystals are grown artificially, and how crystals are used in industry.
Describes how crystals form in nature, how crystals are grown artificially, and how they are used in industry, with color photos and text identifying the various gemstones.
Describes how crystals form in nature, how crystals are grown artificially, and how they are used in industry. Numerous color photos with text identify the various gemstones.
Describes how crystals, semiprecious stones, and precious metals form in nature, how crystals are grown artificially, and how crystals are used in industry.
