Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog Project Gutenberg 2007-11-26 Public domain in the USA. 141 Mastin, John 1865 The Chemistry, Properties and Tests of Precious Stones Reading ease score: 52.5 (10th to 12th grade). Somewhat difficult to read. Produced by The Online Distributed Proofreading Team at http://www.pgdp.net. (This file was produced from images generously made available by The Internet Archive/American Libraries.) "The Chemistry, Properties and Tests of Precious Stones" by John Mastin is a scientific publication written in the early 20th century. The book focuses on the analysis of precious stones, exploring their chemical composition, physical properties, and methods of testing and classification. Mastin aims to provide valuable insight not only to experts in mineralogy but also to the interested layperson. The opening of the work introduces the definition of what constitutes a precious stone, emphasizing the characteristics that distinguish them from other minerals. The author notes that the value of precious stones is influenced by factors such as their rarity and changing public perceptions. Mastin explains the significance of various physical properties—like hardness, transparency, color, and crystalline structure—in categorizing gems. He sets the stage for a detailed exploration of these themes, indicating that subsequent chapters will delve deeper into specific stones as well as the processes involved in their study and classification. (This is an automatically generated summary.) en Precious stones QE Text Chemistry Browsing: Science - Chemistry/Biochemistry/Physics Browsing: Science - General 259408 259409 2024-10-10T09:09:05.464894 2023-09-10T11:32:32.711983 text/html text/html 243493 2007-11-26T06:12:40 text/html; charset=iso-8859-1 73183 2007-11-26T06:12:40 text/html; charset=iso-8859-1 application/zip 166019 2024-10-10T09:09:15.039852 application/epub+zip 164699 2024-10-10T09:09:09.508023 application/epub+zip 143993 2024-10-10T09:09:07.935858 application/epub+zip 369764 2024-10-10T09:09:18.776796 application/x-mobipocket-ebook 339547 2024-10-10T09:09:13.781799 application/x-mobipocket-ebook 288017 2022-09-11T06:21:37.430309 application/x-mobipocket-ebook 196349 196156 2024-10-10T09:09:04.464858 2023-09-10T11:32:31.804983 text/plain; charset=us-ascii text/plain 196206 2007-11-26T06:12:38 text/plain; charset=iso-8859-1 67982 2007-11-26T06:12:40 text/plain; charset=iso-8859-1 application/zip 196233 2007-11-26T06:12:38 text/plain; charset=us-ascii 67950 2007-11-26T06:12:40 text/plain; charset=us-ascii application/zip 20995 2024-10-10T09:09:18.999791 application/rdf+xml 18025 2024-10-10T09:09:08.510857 image/jpeg 3989 2024-10-10T09:09:08.223827 image/jpeg 157475 2024-10-10T09:09:05.482868 application/octet-stream application/zip