Detailed classification and photographs and models of formation of geodes and their structures and inclusions.

A full model of the mechanism of thunderegg formation with site information for the western U.S.

Professor Charles Howard offers a personal message to his son, Gadi, and to all new doctors. Now, as Gadi and other young doctors enter this calling, Howard seeks to provide advice and encouragement in the hopes that those choosing the profession of healing will find happiness and fulfilment in helping others, and avoid the arrogance and the lack of caring, that unfortunately, is sometimes found in the profession. Each new doctor must find, from the vast range of opportunities medicine provides, the perfect match to his/her interests and ambition. Howard chose the path of a paediatric orthopaedic surgeon, a career that for him has been most satisfying, edifying, and instructive. Over the years, he has experienced things that inspired him to be both a better person and a better doctor.

The rapid growth of gemological sciences and mineralogy demands a dictionary such as this for gemologists, mineralogists, geologists, jewel dealers, industry and hobbyists. With some 16,000 comprehensive definitions, supplemented by more than 250 diagrams and figures, this is a one-stop reference to any matter dealing with gems and gemology.

Go on an outdoor treasure hunt and enjoy all nature has to offer with this field guide to rockhounding, perfect for armchair geologists or anyone headed out on an adventure! Geology meets treasure hunting with this field guide to rockhounding! If you’ve ever kept an interesting rock or shell, bought a polished stone from a gift shop, or even just enjoyed a ’gram of a really cool crystal, congratulations! You’ve already experienced a rockhounding adventure! Rockhouding for Beginners shows you how to take your rockhounding to the next level, providing everything you need to know from tips for finding local sources for really cool finds to techniques for safely cleaning, cutting, polishing, and caring for the best samples. Complete with full-color photos to help you identify each rock and mineral wherever you find them, this guide has all the rockhounding information you need whether you’re ready to get down and dirty or simply want to learn more from the comfort of your couch.

This unique book presents hundreds of spectacular photographs of large-scale to small-scale field geological features of flood basalt volcanism from around the world. Major flood basalt provinces covered in this book include the British Palaeogene, Central Atlantic Magmatic Province, Columbia River, Deccan, East Greenland, Emeishan, Ethiopian, Ferrar-Karoo-Tasmania, Iceland, Indo-Madagascar, Paraná, Siberian, West Greenland, and others. Intermediate- to small-sized flood basalts (such as Saudi Arabia and South Caucasus) are also included. Different chapters of the book illustrate varied features of flood basalts, including landscapes, lava flow morphology and stacking, structures formed during lava flow transport, inflation and degassing, structures produced during lava solidification, subaqueous volcanism and volcanosedimentary associations, explosive volcanism, intrusions, igneous processes and magmatic diversity, tectonic deformation, secondary mineralization, and weathering and erosion. This book will be valuable for a large audience: specialists studying flood basalt volcanology, petrology, geochemistry, geochronology, geophysics, and environmental impact and mass extinction links; nonspecialists who want to know more about flood basalts; field geologists (such as those working in geological surveys); students of volcanology and igneous petrology, and even people employed in the industry, such as those working on flood basalt-hosted groundwater or petroleum reservoirs.

Rockhounding Colorado takes you to 100 of the best rockhounding sites in the state. Search for amethyst and quartz at the Crystal Hill Mine, check out the view at Douglas Pass while looking for leaf imprints and insect fossils, or head to Saint Peters Dome to uncover green, white, and purple fluorite.

Rockhounding Alaska will be an in-depth guide to the rocks, minerals and fossils legally found and collected within the state. The book will contain a light, informative overview of the geologic history of Alaska as well as a site-by-site guide to approximately 70 collecting locations. Included with every site will be clear concise driving directions, a GPS position and list of major attractions and local amenities. The exciting locations stretch from Kodiak Island to the Arctic Circle and range from ancient fossilized sea creatures to precious gems and gold nuggets.

Rocks, Minerals, and Geology of the Pacific Northwest highlights100 rocks, minerals, and fossil types found in Oregon and Washington. Each entry has color photography that shows a range of possibilities in appearance and a description of the defining physical properties and textures. Lists of minerals organized by other physical properties like habit, hardness, and cleavage are included. Rocks, Minerals, and Geology of the Pacific Northwest also includes 40 landscape features viewable along trails in Washington and Oregon that will empower hikers to make observations and interpretations about how these features came to be. The essential reference for rockhounds, hikers, climbers, and geology enthusiasts More than 400 photographs, illustrations, tables, and maps showcase and explain everything from minuscule crystals to planetary tectonics Interprets the histories of dominant landscape features along regional hiking trails Profiles more than 100 minerals and rocks in detailed entries with photos, descriptions, identification graphics, and mini indexes Covers the geologic composition and 13 physiographic regions of Washington and Oregon