This book belongs in the backpack of any outdoor enthusiast because identifying rocks and minerals has never been more interesting or easy. Author Sid Wayland examines common minerals and elements, discussing their visible properties and chemical makeups as well as how to identify specimens through a number of tests that can be performed at home or in the field. Tests range from those as simple as scratching an unknown sample with a fingernail to those more complex in which platinum wire, charcoal blocks, a flame and chemicals are required. This book also describes how to make much more of the equipment needed for testing. Anyone with an interest in rocks, whether for pleasure or profit, will love this book.