Cheryl Chase is a 10-year-old girl dealing with her best friend moving away and her brother mysteriously disappearing. To make matters worse, she'll be attending middle school alone with the snobby queen bee Sherry Anders. But one day, she discovers a mysterious gem necklace in her backpack, and with it, a whole other world filled with magic. She and one other must protect this magical world from an evil force that is threatening all life there. Along the way, she'll also meet new friends and deal with hardships at home.

This book deals with the rare earth elements (REE), which are a series of 17 transition metals: scandium, yttrium and the lanthanide series of elements (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium). They are relatively unknown to the wider public, despite their numerous applications and their critical role in many high-tech applications, such as high-temperature superconductors, phosphors (for energy-saving lamps, flat-screen monitors and flat-screen televisions), rechargeable batteries (household and automotive), very strong permanent magnets (used for instance in wind turbines and hard-disk drives), or even in a medical MRI application. This book describes the history of their discovery, the major REE ore minerals and the major ore deposits that are presently being exploited (or are planned to be exploited in the very near future), the physical and chemical properties of REEs, the mineral processing of REE concentrates and their extractive metallurgy, the applications of these elements, their economic aspects and the influential economical role of China, and finally the recycling of the REE, which is an emerging field.

This is the second of two volumes of transcribed lectures Darby Costello presented for the CPA in which she shared a dynamic and imaginative exploration of the four astrological elements. Poetic and comprehensive, this volume is a must-have introduction to the elements. Part One: Earth. Discover the nature and meaning of the earth element beginning with the importance of the earth rituals of archaic cultures. Next, explore the meaning of planetary placements in the three earthy signs, and the qualities of the planetary rulers of those signs. The complexity and subtlety of earth is further revealed through an analysis of the chart of Teilhard de Chardin, the remarkable Christian mystic and scientist who integrated two apparently disparate yet intimately connected dimensions of earth which form the great paradox of this element - its rationality and respect for facts, and its profound sense of the magic and transpersonal mystery inherent in the heart of material reality. Part Two: Air. The air element is often mistakenly thought to be "merely" rational. In this seminar Darby takes us on an expansive flight into the upper regions of the mind, exploring first the meaning and nature of air, and then examining planetary placements in the three airy signs and the attributes and mythology of the airy planetary rulers - which, according to traditional astrology, each govern both an earthy and an airy sign. The fluid and effervescent spirit of air is further revealed through the chart of the great poet W. B. Yeats, whose vision, fertility of ideas, and love of beauty in form and idea portray the essential nature of this most elusive of the astrological elements.

Forced to interact with the natural elements that invigorate a built structure and co-determine a building's experiential reality during construction, one ought to keep in mind their brute powers - earth's crushing heaviness, the erratic character of water, air's thermo-dynamic cataclysms, or the dangerous benignity of fire. Affective in a direct way, they act as guiding principles in the process of realization: While the earth targets the foundations, the roof shields from water, the openings control the flow of air, and the walls protect from the gleaming sun.

Developments in Geochemistry, Volume 2: Rare Earth Element Geochemistry presents the remarkable developments in the chemistry and geochemistry of the rare earth elements. This book discusses the analytical techniques and the recognition that rare earth fractionation occurs naturally in different ways. Organized into 13 chapters, this volume begins with an overview of the wide array of types and sizes of the cation coordination polyhedral in rock-forming minerals. This text then examines the application of rare earth element abundances to petrogenetic problems that has centered on the evolution of igneous rocks. Other chapters consider the matching of observed rare earth element abundances with those provided by the theoretical modeling of petrogenetic processes. This book discusses as well the hypotheses on the genesis of a rock or mineral suite. The final chapter deals with the principal analytical methods. This book is a valuable resource for undergraduates, lecturers, and researchers who study petrology and geochemistry.

Owing to their unique magnetic, phosphorescent, and catalytic properties, rare earths are the elements that make possible teverything from the miniaturization of electronics, to the enabling of green energy and medical technologies, to supporting essential telecommunications and defense systems. An iPhone uses eight rare earths for everything from its colored screen, to its speakers, to the miniaturization of the phone?s circuitry. On the periodic table rare earth elements comprise a set of seventeen chemical elements (the fifteen lanthanides plus scandium and yttrium). There would be no Pokémon Go without rare earths. Rare Earth Frontiers is a work of human geography. Klinger looks historically and geographically at the ways rare earth elements in three discrete but representative and contested sites are given meaning.