The Specific Gravity of Gemstones - A Collection of Historical Articles on Gemstone Testing

Step into the scientific world of gemstone identification with this fascinating collection of historical gemological articles, carefully curated from early 20th-century and earlier sources for today's readers.Focusing on one of the most essential physical tests in gemology, specific gravity measurement, the volume explains the classic methods used to determine a gemstone's density relative to water, illustrating how this property can help distinguish between different gem materials and support broader gemstone testing.Contents include: Gem Testing by B. W. AndersonGemstones by G. F. HerbertA Text Book of Mineralogy by Edward Salisbury DanaGems and Gem Material by Edward Henry KrausPractical Gemmology by Robert WebsterGem Stones and Their Distinctive Characters by G. F. Herbert SmithWith original texts and expert context preserved in an accessible modern edition, this book is a valuable and engaging reference for gem enthusiasts, students, collectors and anyone curious about the foundational techniques of gemstone testing and identification. Read more