A look at 294 different rocks, minerals, and gemstones. Each entry describes where the material is found, what it is made of, and how it is used.

This is the ultimate photographic guide to all types of rock, an essential reference book for even the most experienced geologist, with many tips on sourcing ro

Discusses the physical properties of various rocks and minerals and gives instructions for collecting and identifying specimens.

Discusses how fossils are formed and areas where you can find then near your home. Includes more than 12 easy-to-do science projects.

This illustrated encyclopedia tells about the plants and animals of our world.