Rocks, gems, and minerals / Zim, Herbert Spencer

An identification guide to the most common kinds of rocks and minerals that describes and illustrates their physical and chemical properties, their origin, their geologic and economic significance, and where and how to collect them.

Includes information on collecting and identifying minerals, and sections on metallic, nonmetallic, gem and rock-forming minerals, and on igneous, sedimentary and metamorphic rocks.

Presents information on collecting and identifying rocks and minerals, with sections on metallic, nonmetallic, gem, and rock-forming minerals, and on igneous, sedimentary, and metamorphic rocks.