collection and preservation

The Aldens take part in a hunt at a gem mine and discover that someone is out to sabotage the contest.

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.

Readers will learn about the fascinating stories behind fossils and how they are preserved.

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

A full-color field guide for children to experience the excitment of finding, collecting and identifying rocks.

"Fourth-grader Jada's best friend moved away but a class project on rocks and minerals, her favorite topic, could mean new friends, if only one of her teammates would stop being mean"--OCLC.

Christopher Marley's art expresses his passionate engagement with the beautiful forms of nature. Beginning with insects and moving on to aquatic life, reptiles, birds, plants, and minerals, Marley has used his skills as a designer, conservator, taxidermist, and environmentally responsible collector to make images and mosaics that produce strong, positive emotional responses in viewers. Marley has a brilliant eye for color and pattern in different natural objects, and he expertly captures the deep relationships among them. Biophilia (literally, "love of living things") is a must-have for nature lovers, designers, artists, craftspeople, and anyone looking for visual inspiration in the arts.

Describes the formation and characteristics of igneous, metamorphic, and sedimentary rocks and how to recognize and collect them.