Gør som tusindvis af andre bogelskere
Tilmeld dig nyhedsbrevet og få gode tilbud og inspiration til din næste læsning.
Ved tilmelding accepterer du vores persondatapolitik.Du kan altid afmelde dig igen.
Gemstones refer to pieces of mineral crystals that have been cut and polished, and are used for creating jewelry and other adornments. They come in a wide variety of colors and shades. Mineralogy refers to the study of the chemistry, crystal structure and physical properties of minerals and mineralized artifacts such as gemstones. Geochemistry refers to the study of the chemical composition of the Earth and its rocks and minerals. As gemstones are formed and found beneath the Earth's surface and may contain traces of minerals, they are studied under the subjects of mineralogy and geochemistry. They can be categorized as crystalline or amorphous. Minerals with a definite and regular internal atomic structure are called crystalline gemstones. Amorphous gemstones have no naturally occurring form and no organized internal atomic structure. This book includes some of the vital pieces of works being conducted across the world, on various topics related to the mineralogy and geochemistry of gemstones. With its detailed analyses and data, it will prove immensely beneficial to professionals and students involved in this area of study at various levels.
A gemstone is a precious or semi-precious stone, which is used for making jewelry and is used as an ornament due to its antiquity. Gemmology is the branch of mineralogy, which deals with the study of natural and artificial gemstones. The Earth's crust is composed of three types of rocks, including metamorphic, igneous and sedimentary. Each type of rock originates under various conditions resulting in a diverse range of gemstones. They can be categorized as precious gemstones and semi-precious gemstones. Precious gemstones include sapphires, diamonds, emeralds and rubies. All other gemstones are classified as semi-precious gemstones. Geological conditions like redox conditions, temperature and chemistry determine the amount of trace chemical components. The difference between a gemstone and mineral specimens can be determined through such trace chemical components. The color of the gemstone is determined by these components and can provide a basis for identifying the gemstone's origin. This book provides comprehensive insights on gemmology. Researchers and students in this field will be assisted by it.
Minerals are nonrenewable natural resources that are essential in the energy, manufacturing and construction industry. Mineralogy refers to a discipline of science that examines all facets of minerals, including their occurrence and distribution in nature, physical characteristics, internal crystal structure and chemical composition, as well as the physicochemical conditions that led to their origin. Mineralogy has significant role in mineral extraction and advancements in this field have resulted in industrialization of minerals. Applied mineralogy is a research field which focuses on the manufacturing of materials, and the prospection, extraction and refinery of ores. It also studies the impact of minerals on human health and the environment. This book unravels the recent studies in the field of applied mineralogy. It explores all the important applications of this field in the present day scenario. The book is appropriate for students seeking detailed information in this area as well as for experts.
A gemstone refers to a cut and polished piece of mineral crystal that can be utilized to create jewelry or other adornments. Gemstones are created underneath the surface of the Earth and may contain traces of other minerals known as inclusions. The majority of gemstones are found in alluvial gravels and igneous rocks but metamorphic and sedimentary rocks can also contain gem materials. Gemstones are classified into different species and groups on the basis of chemical composition and crystal structure. The most significant gemstone species include corundum, quartz, beryl, tourmaline and garnet. The majority of gemstones are hard but some soft minerals are also utilized in jewelry due to their luster or other physical qualities which hold aesthetic value. This book unravels the recent studies on the geology and mineralogy of gemstones. With its detailed analyses and data, it will prove immensely beneficial to professionals and students involved in the study of gemstones at various levels.
The rare earth elements are a group of nearly indistinguishable and lustrous silvery-white soft heavy metals. They react slowly with cold water to form hydroxides and ignite at high temperatures. These elements are used in the production of highly efficient magnets, glasses, alloys and electronics. They are also used in the manufacture of fuel cells, mobile phones, computers, optical fiber cables, hybrid cells, and LEDs. In the agricultural sector, rare earth elements are used to increase the growth of the plants, increase crop yield, and improve stress resistance in plants. Some of the rare earth elements are scandium, yttrium, cerium, promethium, europium, dysprosium and ytterbium. This book provides significant information to help develop a good understanding of the rare earth elements. A number of latest researches have been included to keep the readers up-to-date with the global concepts in this area of study. The book aims to serve as a resource guide for students and experts alike and contribute to the growth of research on these elements.
Mineralogy refers to the systematic study of all minerals, including their description, physical environment, crystallography and chemical characteristics. Applied mineralogy is focused on inorganic non-metal materials, and their sampling, analysis, synthesis, preparation, evaluation and property identification. Process mineralogy is a type of applied mineralogy that concentrates on solving issues related to ore processing. The goal of process mineralogy is to recognize, diagnose and forecast the mineralogically affected or regulated processing properties of an ore. They are also used as essential components of building materials like marble, plaster, granite, limestone, glass, cement and gravel. This book includes some of the vital pieces of work being conducted across the world, on various topics related to applied mineralogy. It will serve as a valuable source of reference for graduate and postgraduate students. Most of the topics introduced in this book cover new techniques and the applications of this field.
Tilmeld dig nyhedsbrevet og få gode tilbud og inspiration til din næste læsning.
Ved tilmelding accepterer du vores persondatapolitik.