Dig Into Rocks, Minerals, and Crystals by The Geo Center. Nonfiction.

Dig Into Rocks: Minerals and Rocks by Beverly Wilson and Shore Wilson Rundell. Nonfiction.

Everybody Needs a Rock by Byrd Baylor.  Fiction.

Rocks & Minerals (Eyewitness Explorers) by Steve Parker.  Nonfiction.

Looking at Rocks  (My First Field Guide) by Jennifer Dussling.   Nonfiction.

Remarkable Rocks (Ranger Rick Science Spectacular Series - Big Book) by Ron Cole.  Nonfiction.

Rocks and Minerals by Edward Ricciuti. Nonfiction.

Rocks and Minerals by S Parker. Nonfiction.

Dirt by Steve Tomecek. Nonfiction.

Magic School Bus Meets the Rot Squad by Joanna Cole. Nonfiction/fiction.

Soil by Christin Ditchfield. Nonfiction.