Gemmologists' Compendium

Robert Webster

Van Nostrand Reinhold, 1980 - Design - 240 pages

Contents

• PART: 11
• Base system for price of pearls 225: 70
• Refractive index and density Relation between 236: 88
• Cleavage: 117
• Specific gravity: 120
• Staining of gemstones 182: 138
• Emission lines for calibration Spectral: 158
• Colour filters: 159
• Streak tests 204: 166
• Composite stones: 176
• Gauges Diamond and pearl 227: 180
• Conversion formulae 229: 184
• Light spectrum 157: 205
• Valency: 212
• Damage to gemstones: 219
• Minimum deviation S G 132: 221
• Weights Metric: 229
• Density correction tables: 232
• Precious metals Acid tests for: 236

Bibliographic information

• Title: Gemmologists' Compendium
• Author: Robert Webster
• Edition: 6
• Publisher: Van Nostrand Reinhold, 1980
• Original from: the University of California
• Digitized: Feb 20, 2008
• ISBN: 0442238851, 9780442238858
• Length: 240 pages
• Subjects: Design / Jewelry; Nature / Natural Resources; Nature / Rocks & Minerals