Let's go rock collecting /
by Roma Gans ; illustrated by Holly Keller.
- [2nd ed.].
- New York : HarperCollinsPublishers, 1997.
- 31 p. : col. ill. ; 21 x 26 cm.
- Let's-read-and-find-out science. Stage 1 .
Describes the formation and characteristics of igneous, metamorphic, and sedimentary rocks and how to recognize and collect them.