Mineralers kemi, krystaller og ædelsten

The fact that you want to know more about gemstone cutting means you already have the motivation needed to start turning your dream into a reality. During the lapidary became a popular hobby in the United States.Gemstones are naturally beautiful, but you can make them glisten and shine. This beginner's guide covers all the techniques you need to know: tumbling, cutting, face polishing and more. By following the simple steps approach in this book, you'll create finished stones worthy of displaying, selling or making into jewelry.In this book, you will learn:The history of lapidary and how it has evolved over the yearsThe importance of studying your rough rocksThe tumbling process and how to turn dull pieces into glistening gemsThe steps involved in turning rocks into cabochons, curved and faceted piecesThe qualities and qualifications which you need to be great at this artThe skills involved in identifying and handling precious stonesAnd much more!If lapidary was something that you have always wanted to do but you have been putting it off because you are not sure you can create professional and breathtaking pieces that will take the world by storm, worry no more. All you need to do is allow this book to prove that, indeed, it can be done by someone who is just starting!

Mineral Systems, Earth Evolution, and Global Metallogeny provides insights into the critical parameters of Earth's evolution, particularly in terms of thermal state, tectonics, and the atmosphere-hydrosphere-biosphere system that control the metallogeny of the planet. World-class to giant mineral systems are described and interpreted in terms of their relationship to critical periods of change in tectonic regimes within the supercontinent cycle and evolution of the mantle lithosphere. Specific times of formation of highly anomalous giant mineral systems, such as the so-called Boring Billion, are discussed together with specific tectonic environments, such as craton edges and thick lithosphere margins. This book provides an overview on how the evolution of Earth has dictated the nature and distribution of its mineral resources that are the foundation of our modern industries and provides insights into critical parameters for conceptual exploration targeting. Mineral Systems, Earth Evolution, and Global Metallogeny provides a helpful resource for researchers, academicians, undergraduate and graduate students, and geologists engaged in the fields of economic geology, geologic exploration, mineral systems, and earth evolution in understanding the timing and distribution of the world's major mineral deposits and their relation to critical parameters controlling earth's evolution.

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En dag bliver diamanthandleren Sidsel Dalby Glerup kontaktet af en ukendt portugiser. Han vil have hende til at finde en sjælden lyserød diamant og har 75 millioner kroner at gøre godt med. Sidsel går derfor på jagt efter den sjældne diamant. Via hemmelige lokaler i Antwerpen og på diamantbørsen i Israel lykkes det Sidsel at finde et eksemplar af en lyserød diamant, men det viser sig, at manden med millionerne spiller med skjulte kort.Undervejs i denne virkelige fortælling tager Sidsel Dalby Glerup os med gennem diamanternes historie og videnskab. Hvorfor har vi mennesker været så fascineret af de hårde, glimtende sten, at de sælges for flere hundrede millioner?Usleben er en beretning om eventyr og hemmeligheder, der gør læseren klogere på de mineraler, der skabes dybt gennem jorden over millioner af år. Samtidig er det en personlig fortælling om at blive slået ud af kurs først af en ulykke og senere af stress og om at træde nye veje i livet og gøre dem til en forretning.Sidsel Dalby Glerup (f. 1980) er diamanthandler og indehaver af virksomheden Dalby Diamonds, der har kontorer i København, London og Geneve. Hun er uddannet gemmolog fra Gemological Institute of America og sælger diamanter til kunder over hele verden. Usleben. En personlig fortælling fra diamanternes hemmelige verden er Sidsel Dalby Glerups debut.Bogen er blevet til i samarbejde med David Pepe Birch.