Dan R. Lynch Knihy

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

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

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.

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.

This tabbed booklet offers a practical guide to identifying collectible rocks and minerals found along the Pacific Coast of California, Oregon, and Washington. It is designed for enthusiasts and collectors, providing clear organization and easy access to information, making it an essential tool for anyone interested in the geology of this region.

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