Let's go rock collecting /
by Roma Gans ; illustrated by Holly Keller.
- Newly ill. ed.
- New York : HarperCollins, c1997.
- 30 p. : col. ill. ; 22 x 27 cm.
- Let's-read-and-find-out science. Stage 2 Reading rainbow book .
Describes the formation and characteristics of igneous, metamorphic, and sedimentary rocks and how to recognize and collect them.