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by Various (Author)
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. Anderson
- Gemstones by G. F. Herbert
- A Text Book of Mineralogy by Edward Salisbury Dana
- Gems and Gem Material by Edward Henry Kraus
- Practical Gemmology by Robert Webster
- Gem Stones and Their Distinctive Characters by G. F. Herbert Smith
With 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.
