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Contrary to a generally held view that pearls are found by chance in oysters, almost all are now produced from farms. This book is a comprehensive treatment of all aspects of the biology of pearl oysters, their anatomy, reproduction, genetics, diseases, etc. It considers how they are farmed from spawning and culturing larvae in hatcheries to adults in the ocean; how various environmental factors, including pollution affect them; and how modern techniques are successfully producing large numbers of cultured pearls. This is the ultimate reference source on pearl oysters and the culture of pearls, written and edited by a number of scientists who are world experts in their fields. Comprehensive treatment of pearl oyster biology and pearl culture Written by the top world authorities Highly illustrated and figured Of practical relevance to a broad readership, from professional biologists to those involved in the practicalities and practice of pearl production
When real estate agent Diana Sullivan, raised in affluent in Chevy Chase, steps from her car onto the gravel parking lot of Mattingly's General Store in June 1957, she enters an unfamiliar world--the isolated and rural 7th District of St. Mary's County in Southern Maryland. As she walks toward the store seeking directions, she is jostled by a young man. While Harry helps Diana retrieve the scattered contents of her purse, he gives her a preview of the local vernacular and mannerisms. Although Diana leaves the young waterman in anger after this volatile first meeting, she will welcome Harry's assistance later in the day. In time, Diana grows to love Harry, his family, and the region's culture. She enjoys the warmth and acceptance of the locals, a tightly knit community of watermen and tobacco farmers, many of whose families' roots extent back to Southern Maryland's colonial days. However, she knows that her upper-class family would disapprove of her involvement with these rural people. Soon, critical external pressures buffet the cocoon that Diana and Harry have spun around their relationship, causing the two lovers to question whether their love can survive.
Pearl: Natural, Cultured and Imitation discusses some aspects, distinction, and authenticity of pearl. This book is divided into 10 chapters that cover the origin, anatomy, sources, and prices of this precious gem. The first five chapters are devoted to natural pearls, their unique features, origin, history, structure, anatomy, and source. The next two chapters cover cultivation and testing of cultured pearls, as well as their market value. A chapter focuses on the properties of various imitation pearls. The concluding chapters deal with the pricing of pearls, primarily based on an elaborate method using a base price referred to as the “unit base price . These chapters also consider other pearl uses other than necklaces, such as borders to brooches and festoons. This book will be of great value to pearl traders, manufacturers, and users.
Fourth in the Fred Ward Gem Book Series, PEARLS, REVISED, has new color photographs with the latest most accurate information. Everything you need to know about pearls: culturing, buying, and caring for them. The history and lore of pearls covers natural, cultured, saltwater, freshwater, mother-of-pearl and imitation.
Pearls are one of the oldest precious gemstones. They have been revered through history and the best reserved to adorn royalty and their favourites. Now, with the arrival of freshwater pearls, they are available to suit every pocket and every style, from the classic to the most creative. It includes a guide to the types of pearl and to the farming process. It gives advice on buying pearls; what to look for and what to avoid and gives instruction on working with pearls, including drilling, setting and knotting. Finally, there is information on South Sea, Tahitian, Akoya, freshwater and natural pearls. This practical book celebrates their exquisite beauty and enduring elegance.
With today's finest cultured pearls rivaling diamond, ruby, emerald and sapphire in terms of popularity, rarity and price, more and more people are searching for a reliable source of information to guide them in the fascinating and complex world of pearls-natural, cultured and imitation. This revised and updated 3rd edition is a comprehensive, authoritative guide that tells readers everything they need to know about pearls to fully understand and appreciate them, and avoid any unexpected-and costly-disappointments, now and in future generations.
Voici une histoire qui n'a jamais encore été racontée. L'époque qui la précède est largement documentée, mais l'histoire des perles de culture est récente et ne cesse d'évoluer. Son origine se trouve, bien sûr, au Japon car personne plus que les japonais n'a fait autant pour les progrès de cette science étonnante. Vous allez probablement découvrir ici qu'avant la Seconde Guerre mondiale, les perles de culture blanches Mers du Sud étaient appelées "perles Mitsubishi"; que, de 1946 à 1948, les forces d'occupation alliées interdirent aux citoyens japonais d'acheter leurs propres perles de culture ; que la taille moyenne de ces mêmes perles, toujours avant la guerre, ne dépassait pas 4 mm. Et bien d'autres découvertes encore. Nous vous invitons à un bref voyage dans les temps anciens, sur les traces des perles fines mais ce ne sera toutefois qu'une introduction à l'exploration en profondeur des cent premières années de la perliculture. Vous trouverez également une description scientifique de chaque type de perles de culture ainsi qu'un lexique, un outil fort utile à tous ceux qui ont un intérêt ou même une passion pour cette gemme fascinante.