Gemstones of East Africa


Book Description

Gives the gem and mineral collector a book on gemstones and their occurrences, deposits and mining in Kenya, Uganda, and Tanzania.




Minerals & Gemstones of East Africa


Book Description

East Africa is famous for its world-class gemstones and mineral specimens, most notably the highly sought-after blue tanzanite, found only in Tanzania in a very small area in the northeast. Many other minerals and gemstones are mined in the region and this is the first publication to showcase and examine those occurring in the five countries that make up East Africa – Kenya, Tanzania, Rwanda, Uganda and Burundi. The book includes: An introduction to the fascinating geology of the region, including a map depicting underlying geology and mineral occurrence; detailed descriptions of minerals, including their gemological properties, history, occurrence and diverse uses across all spheres of life (from jewellery to numerous household items and even space-shuttle components); multiple full-colour photographs of each mineral and gem specimen. An invaluable reference for collectors, gemologists, students and anyone with an interest in the earth sciences. Sales points: A first, fascinating record of East African minerals and gemstones; numerous beautiful photographs of each mineral in full colour; concise, authoritative and accessible text.




Tanzanite


Book Description

Tanzanite is one thousand times rarer than diamonds The first book ever presenting this precious stone discovered only forty years ago Upon the discovery of Tanzanite in Tanzania a specimen was entrusted to the stonecutter Manuel de Souza, who shared some samples with distinguished gemologists. While the prospector thought that he had found some sapphires, he was astonished to learn that he had unearthed something altogether extraordinary. The new gem immediately caught the eye of Tiffany & Co. Since 1968, the New York-based jeweler has pushed the stone into the spotlight. It launched a campaign that was successful enough to earn tanzanite the noble title of 'gem of the 20th century'. Tanzanite gained further renown when in 2002 the American Gem Trade Association (AGTA) named tanzanite, together with turquoise, the birthstones for December. Tanzanite's transformations have ultimately placed it alongside the most precious of precious gems. In short, tanzanite's age of glory has finally dawned. Needless to say, tanzanite's allure has attracted the attention of a list of famous designers: Lorenz Baumer (France), Ruth Grieco (Brazil), Catherine Sauvage (Germany), MVee (Hong Kong) and TTF (China). In Asia and elsewhere, tanzanite is seen as the source of happiness for the happy few. Tanzanite: Born from Lightning showcases hundreds of beautiful pieces of tanzanite jewelry, including superb creations made by Boucheron, Bulgari, Cartier, Chanel, Chaumet, Chopard, Dior, Boucheron, Louis Vuitton, Piaget, Van Cleef & Arpels, Wallace Chan and more."







Secrets of the Gem Trade


Book Description

Finally the real truth about how master jewellers, gemmologists and major auction houses value diamonds and colored gemstones.




Ruby and Sapphire


Book Description

From the dawn of time, ruby and sapphire have both attracted and fascinated humans in ways that few other items could.While objects of desire are found throughout the natural world, physical beauty is too often ephemeral. From the allure of a man, woman, flower or butterfly, through the fleeting moments of a sunset, there is little that lasts and practically nothing that can be passed down to our descendants. The exception is precious stones. Not only are they the most durable creations of mother nature, but their visual splendor is truly eternal.In this companion to his 2013 book, Ruby & Sapphire--A Collector's Guide, Richard Hughes examines these gems from the gemological standpoint, delving into these gems not just from the aesthetic, but also from the scientific point of view.The product of nearly 40 years of firsthand experience, it covers every aspect of the subject from A-Z. History, sources, prices, quality analysis, synthetics and treatments, everything is here. Ruby & Sapphire--A Gemologist's Guide represents the most comprehensive book ever written on a single precious stone. With over 1000 photos, maps and illustrations and 3500 references, it is nothing less than a tour-de-force of gemological scholarship.




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.




Africa Gems


Book Description

""Africa Gems: Unveiling the Continent's Hidden Treasures"" takes readers on an eye-opening journey through Africa's lesser-known wonders, challenging common preconceptions and revealing the continent's true essence. This engaging book explores three key areas: natural wonders, cultural heritage sites, and emerging urban centers, offering a fresh perspective on Africa's diverse landscapes and rich cultural tapestry. The book's unique approach lies in its focus on overlooked destinations and emphasis on sustainable tourism. From the otherworldly Skeleton Coast of Namibia to the ancient rock art of the Sahara, ""Africa Gems"" showcases the continent's hidden treasures, highlighting its geological marvels, living traditions, and urban renaissance. By integrating insights from geology, anthropology, and urban studies, the book presents a holistic view of Africa's multifaceted appeal. Structured in three parts, the book progresses from natural wonders to cultural heritage sites and finally to emerging urban centers. This journey not only challenges readers' perceptions but also provides practical travel information and encourages responsible exploration. By balancing factual content with vivid descriptions and personal anecdotes, ""Africa Gems"" offers an accessible and inspiring guide for both armchair travelers and adventurous spirits alike.




Minerals


Book Description

Minerals: Their Constitution and Origin is an introduction to mineralogy for undergraduate and graduate students in the fields of geology and materials science. It has been designed for a one-semester course and covers all aspects of mineralogy in an up-to-date and integrated style. The book is divided into five parts that discuss structure and bonding within minerals; mineral physics and optical properties; modes of mineral formation and thermodynamics; mineral groups within the context of mineral-forming environments; and the application of mineralogy for the exploitation of metal deposits, gems, and cement. Identification of minerals in hand specimen and under the microscope are also covered. Throughout the text emphasis is placed on linking mineral properties with broader geological processes, and on conveying their economic value. Containing beautiful colour photographs, handy reference tables and a glossary of terms, this textbook will be an indispensable guide for the next generation of mineralogy students.




Modern Jeweler’s Consumer Guide to Colored Gemstones


Book Description

Since early 1989, a gem dealer I've known for years has been calling me every few weeks to brief me on mounting mayhem in Colombia's lucrative emerald market. The troubling gist of these calls is always this: There is a full-fledged turf war going on between that South American country's bustling drug and gem trades for control of its emerald ex port business. According to this dealer and several others, anywhere from two to four thousand emerald industry people, mostly miners and deal ers, have been murdered since 1980. No doubt the gem sector, itself never gun shy, has retaliated in full and in kind. After all, the two groups have banded together in an intermittent alliance against a common enemy-Communist guerillas-with results the CIA would envy. I mention this bloodshed because of something the gem dealer once said to me: "I bet you never think of what a gem has to go through to get to a jewelry store:' He's right. I tend to think of colored stones as things of beauty, not objects of gruesome power struggles between mining kingpins and drug lords. Can you blame me, or anyone with insider knowledge, if a gem sheds any connection with its past once sculpted by a cutter into the glittering mar vel we see in a jeweler's showcase? Like Odysseus listening to the sirens' song, we become victims of an aesthetics-induced amnesia.