Дата отгрузки на данный момент неизвестна.
Товар закончился у основного поставщика, и, после получения заказа от вас, мы закажем его у других поставщиков. Мы не можем гарантировать выполнение данного заказа, поэтому настоятельно не рекомендуем заказывать данный товар, используя предоплату (банковский перевод и т.п.). Заказ на такой товар действителен в течение 3 недель (если в течение 3 недель товар не придет, заказ будет отменен). Однако, это не означает, что товар нельзя заказать вновь, поскольку в некоторых случаях возможны и более поздние поставки.
Технические характеристики
Crystals are all around us - even inside our bodies - and they have fascinated people for thousands of years. This collection of specially commissioned photographs opens our eyes to their beauty and variety, from brilliant diamonds to rare crystals of gold and silver. Starting with a definition of what crystals are, and why and where they form, this book examines their complex inner structures and fantastic geometrical shapes, what gives them their amazing colours, and other features, such as hardness, that are used in identification. Discover how crystals grow, how they have been used as symbols of wealth and prestige, and how some play an important role in technology. Produced in association with the Natural History Museum, London, Crystal & Gem is a superb introduction to the remarkable and surprising world of crystals. - Here is a spectacular and informative guide to the amazing world of crystals and gems - Superb colour photographs of crytals, jewels, and gemstones of every colour, size and shape offer a unique `eyewitness` insight into their extraordinary beauty and variety - See a crystal growing; diamonds used to cut through a brick wall; a phantom crystal; gemstones formed in a volcano; crystals of gold and silver - Learn how a quartz watch works; how to identify crystals; why crystals have been grown in space; how crystls are used in haling; why Napolean had a diamond in his sword - Discover where to find crystals in your home; how synthetic crystals are made; which famous rubies are really spinels; which is your birthstone