Bøger af Dan R. Lynch

Explore the beauty and history of turquoise, one of the most celebrated and treasured gemstones of ancient and modern times.Revered around the world, turquoise is a mineral with two histories: that of its formation and that of the people who have mined, traded, and treasured it. Turquoise is an icon of ancient civilizations and especially of the desert regions where it most famously appears. Uncover the history and the secrets of this coveted gemstone in Turquoise. Written by Dan R. Lynch with Bob Lynch, the authors of several books about rocks and minerals, this is the definitive guide to the sky-blue stone.Begin by learning the natural history of turquoise, from how it forms to where it’s found. Dan and Bob present tips for finding and identifying turquoise, and they introduce naturally occurring and human-made turquoise look-alikes. Next, go in-depth on the human history of turquoise. You’ll learn all about buying and caring for turquoise, and you can glimpse our future with this gemstone of the American Southwest. Whether you’re a rockhound or someone who simply appreciates nature’s wonders, grab this book and get to know the storied mineral whose very name is a symbol of color.Book FeaturesSummary of the fascinating natural historyExpert advice on how to find and identify turquoiseFull-color photographs and illustrationsSuggestions on what to do with turquoise and how much it’s worth

This children’s guide presents an introduction to the Earth, rock formation, and landforms, as well as hands-on educational activities about geoscience.

This interactive workbook introduces children to rocks and minerals through fun activities and hands-on science projects.

Focusing on rocks and minerals of California, Oregon, and Washington's Pacific Coast, this tabbed booklet features detailed photographs, organized by rocks/minerals and then by general appearance, to help readers quickly and easily identify the rocks and minerals they find.

Focusing on the most common rocks and minerals in the United States, this tabbed booklet features detailed photographs, organized by rocks/minerals and then by general appearance, to help readers quickly and easily identify the rocks and minerals they find.

Get the perfect guide to rocks and minerals in the Land of 10,000 Lakes! The book features comprehensive entries for 90 Minnesota rocks and minerals, from common rocks to rare finds. The easy-to-use format means you''ll quickly find what you need to know and where to look, while the authors'' photographs depict the detail needed for identification - no need to guess from line drawings. With this field guide in hand, identifying and collecting can be fun and informative.

Celebrate North America’s banded gemstones with this stunning coffee-table book about agates.Agates—few other natural formations exhibit the tremendous variety seen in these curiously banded gemstones. No two agates are exactly alike when it comes to color, pattern, or shape. Although they are found on every continent, many well-known and significant varieties are present in North America—fortification agates, fire agates, Lake Superior agates, and more.The Wonder of North American Agates was written and photographed by Dan R. Lynch and Bob Lynch, expert authors of the popular Rocks & Minerals series of field guides. This book features some of the most famous, most valuable, and rarest agates found in Canada, the United States, and Mexico.Inside you’ll find:More than 60 of the most beautiful varieties of agates from across North AmericaIntriguing, informative text that explains the fascinating differences between agates and why each is significantCompelling, true-to-life photos that show each agate’s special beautyCasual fans and experienced collectors alike will appreciate the facts and photographs presented in this incomparable book.

Focusing on rocks and minerals of Washington and Oregon, this field guide features full-color photographs and information to help readers identify their finds.

Focusing on agates of Michigan, Minnesota, Wisconsin, and southern Ontario, this field guide features full-color photographs and information to help readers identify their finds.

Focusing on rocks and minerals of New York, this field guide features full-color photographs and information to help readers identify their finds.

Focusing on rocks and minerals of Wisconsin, Illinois and Iowa, this field guide features full-color photographs and information to help readers identify their finds.

This children's guide to fossil collecting includes an introduction to paleontology, an identification section, and "how to" instructions.

This updated field guide, organized by area, features full-color photographs and information to help readers easily identify the region's rocks and minerals.

An acclaimed field guide author and a psychologist take an objective look at crystal healing and share their conclusions in a fascinating and informative book.

Focusing on collectible rocks and minerals of California, Oregon, and Washington's Pacific Coast, this tabbed booklet helps readers to easily identify their finds.

This all-in-one guide helps readers learn how to find, identify, and collect Michigan's Petoskey stone.

This children's guide to rock collecting includes a beginner's introduction to geology, an identification section for 75 types of common and collectible rocks and minerals, and a "how to" section.