Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog Project Gutenberg 2009-02-12 Public domain in the USA. 985 Wade, Frank Bertram 1875 1950 A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public E-text prepared by Peter Vachuska, Chuck Greif, Stephen Blundell, and the Project Gutenberg Online Distributed Proofreading Team (https://www.pgdp.net) "A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public" by Frank B. Wade is a scientific publication written in the early 20th century. The book serves as a comprehensive guide for jewelers and enthusiasts seeking to understand the properties, identification, and valuation of precious stones. It aims to empower readers, especially those in the gem trade, with the necessary knowledge to distinguish genuine gemstones from imitations and synthetics. The opening of the text establishes the author's intent to blend practical trade knowledge with scientific principles, making gemology accessible even for those without formal training. It discusses the increasing sophistication of gem consumers and the corresponding need for jewelers to enhance their understanding of gems to avoid pitfalls in sales and appraisals. The author emphasizes a systematic approach in learning to identify different stones based on their unique properties, starting with fundamental concepts such as refraction and hardness, and aims to assist those who feel overwhelmed by the scientific aspects of gemology. (This is an automatically generated summary.) Reading ease score: 66.7 (8th & 9th grade). Neither easy nor difficult to read. en Precious stones TS Text Browsing: Science - General Browsing: Other Category: Science - Earth/Agricultural/Farming Category: How To ... 392574 2025-06-11T14:05:05.833354 text/html 388381 2009-02-12T16:38:31 text/html; charset=iso-8859-1 217063 2021-01-04T17:49:14 text/html; charset=iso-8859-1 application/zip 327551 2025-06-11T14:05:18.684372 application/epub+zip 329226 2025-06-11T14:05:11.192356 application/epub+zip 199585 2025-06-11T14:05:09.043423 application/epub+zip 762830 2025-06-11T14:05:24.194246 application/x-mobipocket-ebook 698988 2025-06-11T14:05:17.095311 application/x-mobipocket-ebook 277072 2022-09-13T06:44:38.297112 application/x-mobipocket-ebook 324769 2025-06-11T14:05:04.733332 text/plain; charset=us-ascii 324454 2021-01-04T17:49:14 text/plain; charset=iso-8859-1 114746 2021-01-04T17:49:14 text/plain; charset=iso-8859-1 application/zip 324483 2021-01-04T17:49:14 text/plain; charset=us-ascii 114728 2021-01-04T17:49:14 text/plain; charset=us-ascii application/zip 19895 2025-06-11T14:05:24.367275 application/rdf+xml 24360 2025-06-11T14:05:09.644309 image/jpeg 4501 2025-06-11T14:05:09.344323 image/jpeg 314864 2025-06-11T14:05:06.061324 application/octet-stream application/zip