The Classification, Identification and Characteristics of Gemstones - A Collection of Historical Articles on Precious and Semi-Precious Stones


Book Description

This book contains classic material dating back to the 1900s and before. The content has been carefully selected for its interest and relevance to a modern audience. Carefully selecting the best articles from our collection we have compiled a series of historical and informative publications on the subjects of gemology and crystallography. The titles in this range include "Gemstone Manufacturing" "The Optical Properties of Gemstones and Crystals" "The Thirty-Two Classes of Crystal Symmetry" and many more. Each publication has been professionally curated and includes all details on the original source material. This particular instalment, "The Classification, Identification and Characteristics of Gemstones" contains information on gemstone varieties, their properties and much more. Intended to illustrate the main aspects of gemstone classification it is a comprehensive guide for anyone wishing to obtain a general knowledge of the subject and to understand the field in its historical context. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.




A Book of Precious Stones


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Simon & Schuster's Guide to Gems and Precious Stones


Book Description

Simon & Schuster's Guide to Gems and Precious Stones provides both the connoisseur and the casual collector with a compact, easy-to-use volume describing more than 100 rare varieties of minerals whose beauty and mystery have possessed our imaginations from time immemorial. More than 450 brilliant photographs accompany profiles of each gem, covering such aspects as appearance, physical properties -- density, hardness, refraction -- occurrence, and how to judge quality and value. Additional sections describe the process of cutting gemstones and the techniques professional gemologists use to evaluate a stone's weight and optical properties. Detailed and comprehensive, this book is essential for anyone interested in the study of gems and precious stones.




Firefly Guide to Gems


Book Description

A guide to the identification, structure, and uses of precious and semi-precious stones, novelty stones, agates, and crystals.




The Crown Jewels of England


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Gems in the Early Modern World


Book Description

This edited collection is an interdisciplinary study of gems in the early modern world. It examines the relations between the art, science, and technology of gems, and it does so against the backdrop of an expanding global trade in gems. The eleven chapters are organised into three parts. The first part sets the scene by describing how gems moved around the early modern world, how they were set in motion, and how they were pulled together in the course of their travels. The second part is about value. It asks why people valued gems, how they determined the value of a given gem, and how the value of a gem was connected to its perceived place of origin. The third part deals with the skills involved in cutting, polishing, and mounting gems, and how these skills were transmitted and articulated by artisans. The common themes of all these chapters are materials, knowledge and global trade. The contributors to this volume focus on the material properties of gems such as their weight and hardness, on the knowledge involved in exchanging them and valuing them, and on the cultural consequences of the expanding trade in gems in Eurasia and the Americas.







Gems and Gem Minerals


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Guide to the Study of Ancient Magic


Book Description

In the midst of academic debates about the utility of the term “magic” and the cultural meaning of ancient words like mageia or khesheph, this Guide to the Study of Ancient Magic seeks to advance the discussion by separating out three topics essential to the very idea of magic. The three major sections of this volume address (1) indigenous terminologies for ambiguous or illicit ritual in antiquity; (2) the ancient texts, manuals, and artifacts commonly designated “magical” or used to represent ancient magic; and (3) a series of contexts, from the written word to materiality itself, to which the term “magic” might usefully pertain. The individual essays in this volume cover most of Mediterranean and Near Eastern antiquity, with essays by both established and emergent scholars of ancient religions. In a burgeoning field of “magic studies” trying both to preserve and to justify critically the category itself, this volume brings new clarity and provocative insights. This will be an indispensable resource to all interested in magic in the Bible and the Ancient Near East, ancient Greece and Rome, Early Christianity and Judaism, Egypt through the Christian period, and also comparative and critical theory. Contributors are: Magali Bailliot, Gideon Bohak, Véronique Dasen, Albert de Jong, Jacco Dieleman, Esther Eidinow, David Frankfurter, Fritz Graf, Yuval Harari, Naomi Janowitz, Sarah Iles Johnston, Roy D. Kotansky, Arpad M. Nagy, Daniel Schwemer, Joseph E. Sanzo, Jacques van der Vliet, Andrew Wilburn.




A Companion to Seals in the Middle Ages


Book Description

A Companion to Seals in the Middle Ages is a cross-disciplinary collection of fourteen essays on medieval sigillography. It is organized thematically, and it emphasizes important, often cutting-edge, methodologies for the study of medieval seals and sealing cultures. As the chronological, temporal and geographic scope of the essays in the volume suggests, the study of the medieval seal—its manufacture, materiality, usage, iconography, inscription, and preservation—is a rich endeavour that demands collaboration across disciplines as well as between scholars working on material from different regions and periods. It is hoped that this collection will make the study of medieval seals more accessible and will stimulate students and scholars to employ and further develop these material and methodological approaches to seals. Contributors are Adrian Ailes, Elka Cwiertnia, Paul Dryburgh, Emir O. Filipovi, Oliver Harris, Philippa Hoskin, Ashley Jones, Andreas Lehnertz, John McEwan, Elizabeth A. New, Jonathan Shea, Caroline Simonet, Angelina A. Volkoff, and Marek L. Wójcik.