Gemstones of the World by Walter Schumann. Walter Schumann is a leading expert and researcher on gemstones. In addition to the perennially successful. Gemstones of the World is the single, cornerstone volume that every hobbyist, jeweler, jewelry maker, and rockhound needs. And this updated edition contains a. : Gemstones of the World: Newly Revised Fifth Edition by Walter Schumann and a great selection of similar New, Used and.
|Published:||21 July 2015|
|PDF File Size:||34.80 Mb|
|ePub File Size:||36.59 Mb|
It is a brief, interesting look at the historical and current importance of gemstones within a more gemstones of the world or homeopathic context, but probably not worth the price of repurchase. This being the fifth edition, one would expect errors to be essentially nonexistent.
The brief description of diffusion treatment in corundum is not correct.
Gemstones of the World by Walter Schumann
gemstones of the world He vaguely gemstones of the world the treatment as creating a thin metal layer on the stone, similar to a foil backing.
Although diffusion treatment commonly utilizes titanium, a metallic element, the connection between his description and actual diffusion treatment stops here.
Additionally, unlike the other treatments he mentions, no detection method for diffusion treated corundum is given. Still, it should be noted that these errors are few and far between, and the book can still be used for referencing and basic information without trouble.
Gemstones of the World by Walter Schumann (, Hardcover, Revised) | eBay
Chemical information is not always consistent either. Quite a large section on cultured pearls is included.
Next is a section about the art and craft of imitation and synthetic gemstones, followed by a section on heating, irradiating, coloring, gemstones of the world otherwise enhancing gemstones—including what must be disclosed to the buyer, legally speaking.
The book concludes with charts of traditional astrological stones, the more recent birthstone-by-month designations, and some remarks on medicinal uses of stones clearly not recommended by the author, but added for the curious.
The book ends with a chart of gemstone listings by color.
Anyone who is interested in gemstones, for whatever reason, will enjoy this book. Whether the reader wants to look at gemstones of the world chemistry behind the stones, find out where various gemstones come from, learn about diamonds, rubies, emeralds, jaspers, or other specific stones, or simply look at pretty photographs, this is the book to gemstones of the world.
There are also many charts and diagrams as well as magnificent color photographs of the stones with data about them on the facing page.
Gemstones of the World - Walter Schumann - Google книги
If you want only one book on gemstones in your library, this would be the one! This is truly the ultimate one-volume book every hobbyist, jeweler, jewelry maker, and rockhound will ever need! Following the spectacular success of the first four editions of Gemstones of the world of the Worldthe revised fifth edition exhibits important updates and a beautiful new cover.