Shows and describes different kinds of rocks and minerals, and tells how to identify rocks by testing for hardness, streak color, and density
Provides detailed information regarding the physical characteristics and unique traits of more than 1,800 precious and semiprecious stones, as well as discussing gemstone structure, production, name origin, and symbolism.
A guide to the major rocks, minerals and gemstones found in Europe. It contains an introduction to the basics of mineralogy, followed by a list of the general features of a rock that can be used in its identification. It also explains how to tell the basic difference between an igneous, metamorphic and sedimentary rock, allowing quick reference to the major identification sections for each of these classes. In these will be found comprehensive descriptions of each rock or mineral, with details of its composition, hardness, specific gravity, colour, fracture, cleavage, streak, lustre, transparency and crystal system, as well as notes on how it is formed and where it might be found, both in the UK and in the rest of the world.
Shows and describes the characteristics of over two hundred gems and minerals
A new edition of the clearest, most authoritative guide to gemstones you will find. From Amber to Rubellite, discover over 130 varieties of cut and uncut stones, organic gemstones and precious metals. 800 incredible photos, precise annotations and detailed descriptions, including everything from gemstone shapes to their composition, will help you to identify different stones quickly and easily. Covers everything from what a gemstone is and where they occur to the natural properties they have and how they have been fashioned and imitated through the ages. Perfect for gemstone lovers and a comprehensive guide for collectors.
A guide which aims to enable the collector and enthusiast to identify rocks, minerals and fossils from all over the world. The text covers collecting and conserving fossils, their major characteristics and details of where they are located.
It’s the classic work: revised and updated! Identify over 500 of the most collectible minerals quickly and easily with this fully photographed field guide. And this new reissue makes identification easier, with new cleavability ratings for each entry alongside the handy classifications based on streak color, Mohs’ hardness, and specific gravity. A complete introductory discussion of mineral forms and properties explains the essential criteria for recognition, and each of the hundreds of minerals (from Ankerite to Zinwaldite) is accompanied by information on its fracture, luster, chemical formula, aggregates, distinguishing characteristics, and localities.
From glittering gemstones to fascinating minerals and fossils, this incredible reference book is a stunning celebration of the Earth s buried treasures. Specially commissioned photography captures the essence and beauty of over 450 superb specimens, while lively and informative text describes the characteristics of each and its unique and changing relationship to humankind through the ages. Organized by rock classes and chemical groups, each rock, mineral, and fossil entry contains a photograph of the specimen together with lively, wide-ranging text describing its qualities and history of use. In addition, a detailed, at-a-glance reference panel provides key data for identification and classification.
Prospecting and collecting trips; Tools and how to use them; Rock classes and how to recognize them; How mineral deposits form; Field features of mineral deposits; Collecting practices; Preparation of specimens; Storage and exhibit; Marketing mineral specimens and gemstones.
Explains the structure and composition of minerals, provides advice for gathering specimens, and offers an identification guide to more than 150 rocks and minerals
Rocks, minerals, and gemstones have fascinated people throughout the ages. They have been used as building materials, decoration, and have often been attributed special powers. This book, arranged in alphabetical format, describes 288 different rocks, minerals, and gems. Each entry includes beautiful color photographs, locations, basic facts, and some interesting information about each stone's uses, myths, and legends. Pages are color-coded to indicate whether each substance is a rock, mineral, or gem.
A beginner's field guide to North American geology identifies common rocks, minerals, gems, fossils, and land formations.
-Lavishly illustrated, Gems of the World is intended for anyone who has ever been fascinated by crystals, jewelry, and gems, from general readers to seasoned professionals. It is a fine addition to general collections.- --Booklist, on the previous edition Gems of the World is a practical and comprehensive guide to the identification and properties of precious and semiprecious gems, novelty stones, agates and crystals. This edition has been revised and thoroughly updated. Changes and new features include updated maps of recently established diamond bourses and geographical country changes, plus new gem varieties and localities where they are found, new techniques for producing synthetic gemstones and simulants, and much more. There is comprehensive information on gems: gem formation mining the diamond industry conflict diamonds ethical sourcing crystal structure (diagrams and cuts) optical and physical properties fashioning and cutting (properties and uses) gemstone cuts for diamonds buying a diamond buying colored gemstones imitation and synthetic gemstones gemstone enhancement history of gems famous diamonds caring for gemstones and jewelry a color key of 139 gemstones. The text describes the world's diamond cutting and trading centers, the -diamond pipeline- that flows from mine to retail, and information on the gemstone industry, ethical mining, conflict diamonds and the emergence of new diamond centers. The description directory of gemstones is organized by their chemical composition. The 139 profiles describe each gem's geology, chemistry, properties (such as color, refractive index, and luster), cultural use in history and its value in jewelry. Photographs show the gem as a raw crystal, in common cuts, polished for use, and in some cases, also in a piece of jewelry. Gems of the World is an ideal reference for gemologists, collectors and general readers.
Your complete guide to the state's rich and varied mineral, gemstone, and fossil sources. In Colorado, rockhounds may pick agate and petrified wood from the vast Great Plains, follow dinosaur tracks on hogback ridges, pan gold in mountain streams, hunt g
Guide to the healing powers of gemstones
In "Rocks, Minerals, and Gems," readers will learn about hundreds of rocks, minerals, crystals, and gems that were forged by the most powerful events in prehistory. Explore what specimens look like and how they're used today--readers can use the information to identify rocks and minerals themselves and open up a spectacular new world. Find out all about star stones and cat's eyes, megagems, and phantom quartz. Discover which rocks fluoresce, which mineral once poisoned an emperor, and which gems are the rarest in the world! Features a beautiful cover with special effects!
Displays rocks, minerals, variant forms, and major gemstones
Describes hundreds of minerals and lists their geographic distribution, physical properties, chemical composition, and crystalline structure
Showcasing works by modern jewelers, and featuring the historic Native American perspective, a complete guide to turquoise provides an in-depth look at both rough and polished natural turquoise from more than twenty famous “classic” mines. Original.