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

Focusing on the historical context of gemology and crystallography, this collection features classic publications dating back to the early 1900s. It includes curated articles on topics such as gemstone testing and crystal symmetry, with "The Specific Gravity of Gemstones" serving as a guide to understanding specific gravity tests. Each work is presented in a modern edition, preserving original text and illustrations, making it accessible for contemporary readers interested in the foundational aspects of these fields.